Page 8 from comparison Asus Zenfone 4 Pro Zs551Kl

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Compare Asus Zenfone 4 Pro Zs551Klwith Samsung Galaxy F56

Feature	Asus Zenfone 4 Pro Zs551Kl	Samsung Galaxy F56
Introduction Time	August 2017
Availability Status	Released	Releasing soon
Official Release Date	October 2017
Operating System Type at Release	Android	Android
Operating System at Release	Android 7.1.1 (Nougat)	Android 15
Size and Dimensions	156.9 x 75.6 x 7.6 mm	162x77.3x7.2 mm (6.38x3.04x0.28 inches)
Product Weight	175 gram (g)	180 gram (g)
Front Panel Material	Glass - Gorilla Glass 5	Glass - Gorilla Glass Victus
Frame material type	Metal - Stainless Steel	Metal - 7000 Series Aluminum
Screen Size	5.5 inch	6.74 inch
Display Panel Type
Display Resolution
Pixel Density Range
Screen-to-Body Ratio	~70.3 percent (%)	~19.5 percent (%)
Screen Aspect Ratio		19.5:9
Memory Card Slot	true	-
Bluetooth Support		-
Supported Memory Card Capacity		-
Main Camera Type - Wide/Standard	12 megapixel (mp)	50 megapixel (mp)
Telephoto Lens	16 megapixel (mp)	-
Maximum Video Recording Quality of Rear Camera	4K	4K
Main Selfie Camera Quality	8 megapixel (mp)	12 megapixel (mp)
Battery Capacity	3600mAh	5000mAh
Battery Technology	Lithium-Ion	-
Battery Replaceability	Non-user replaceable	Non-user replaceable
Connection Port Type		-
OTG Support	false	-
Speaker Type	Stereo (dual)	-
Number of 3.5mm Jacks	true	-
Fingerprint Sensor Type	On the front of the phone	Under-display (optical)
Wi-Fi Specifications
Communication Technologies		GSM / HSPA / LTE / 5G
5G Support	false	true
Navigation Type and GPS
Price Range at Time of Release	-
Operating System Details and Description	-	Android 15, One UI 7
Display Technical Details	-	Corning Gorilla Glass Victus+ protective technology
Chipset Model	-
Chip Manufacturing Process	-	4 nm
Number of Processor Cores	-	8 core
Processor Core Details	-
Other Technical Details of Chipset	-	Octa-core (4x2.75 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Model	-
Internal Memory and RAM Performance	-
RAM Memory	-
Internal Memory Capacity	-	128GB and 256GB
Internal Storage Type	-
Rear Camera Details	-	50 , f/1.8, (wide), PDAF, OIS 8 , f/2.2, (ultrawide) 2 , f/2.4, (macro) megapixel (mp)
Main Camera Specifications - Wide/Standard	-	50 , f/1.8, (wide), PDAF, OIS megapixel (mp)
Ultra-Wide Lens	-	8 megapixel (mp)
Ultra-Wide Camera Details	-	8 , f/2.2, (ultrawide) megapixel (mp)
Macro Camera Type	-	2 megapixel (mp)
Macro Camera Details	-	2 , f/2.4, (macro) megapixel (mp)
Main Selfie Camera Specifications	-
Maximum Supported Charging Power	-
Wireless Charging Support	-	false
Smart Sensors	-	Accelerometer, Altimeter, Gyroscope, Heart rate sensor, Compass
Wi-Fi Details and Description	-	Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Bluetooth Details and Description	-
Back body material	-	Glass (Gorilla Glass Victus+)
Fast Charging Capability	-	true
Compatible SIM Card Types	-	Nano-SIM

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Compare Asus Zenfone 4 Pro Zs551Klwith Samsung Galaxy XCover7 Pro

ASUS VS Samsung

Feature	Asus Zenfone 4 Pro Zs551Kl	Samsung Galaxy XCover7 Pro
Introduction Time	August 2017
Availability Status	Released	Released
Official Release Date	October 2017
Operating System Type at Release	Android	Android
Operating System at Release	Android 7.1.1 (Nougat)	Android 15
Size and Dimensions	156.9 x 75.6 x 7.6 mm	168.6x79.9x10.2 mm
Product Weight	175 gram (g)	240 gram (g)
Front Panel Material	Glass - Gorilla Glass 5	-
Frame material type	Metal - Stainless Steel	-
Screen Size	5.5 inch	6.6 inch
Display Panel Type
Display Resolution
Pixel Density Range
Screen-to-Body Ratio	~70.3 percent (%)	~77.9 percent (%)
Screen Aspect Ratio		20:9
Memory Card Slot	true	true
Bluetooth Support		-
Supported Memory Card Capacity		2 terabyte (tb)
Main Camera Type - Wide/Standard	12 megapixel (mp)	50 megapixel (mp)
Telephoto Lens	16 megapixel (mp)	-
Maximum Video Recording Quality of Rear Camera	4K	-
Main Selfie Camera Quality	8 megapixel (mp)	13 megapixel (mp)
Battery Capacity	3600mAh	4350mAh
Battery Technology	Lithium-Ion
Battery Replaceability	Non-user replaceable	User replaceable
Connection Port Type		USB Type-C 3.2
OTG Support	false	true
Speaker Type	Stereo (dual)	Stereo (dual)
Number of 3.5mm Jacks	true	true
Fingerprint Sensor Type	On the front of the phone	On the side of the phone
Wi-Fi Specifications
Communication Technologies		GSM / HSPA / LTE / 5G
5G Support	false	true
Navigation Type and GPS
Price Range at Time of Release	-
Operating System Details and Description	-	Android 15, One UI 7
European SAR rate (SAR EU)	-	173 kW
Part Numbers	-
Highest Refresh Rate	-	120 hertz (hz)
Display Technical Details	-	Corning Gorilla Glass Victus+ protective technology
Fast Charging Capability	-	false
Compatible SIM Card Types	-	Nano-SIM or eSIM
Chipset Model	-
Chip Manufacturing Process	-	4 nm
Number of Processor Cores	-	8 core
Processor Core Details	-
GPU Model	-
Internal Memory and RAM Performance	-
Memory Card Slot Type	-	microSDXC (dedicated slot)
RAM Memory	-
Internal Memory Capacity	-
Rear Camera Details	-
Main Camera Specifications - Wide/Standard	-	1/2.76-inch wide-angle lens with phase-detection autofocus, 0.64µm pixel size, and f/1.8 aperture
Ultra-Wide Lens	-	8 megapixel (mp)
Ultra-Wide Camera Details	-
Wi-Fi Details and Description	-	Dual Band and Wi-Fi Direct
Bluetooth Details and Description	-
Main Selfie Camera Specifications	-
Maximum Supported Charging Power	-
Wireless Charging Support	-	false
Audio capabilities	-	Stereo speakers (with Dolby Atmos)
Smart Sensors	-	Accelerometer, gyroscope, proximity sensor, compass

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Compare Asus Zenfone 4 Pro Zs551Klwith Samsung Galaxy S25 Edge

ASUS VS Samsung

Feature	Asus Zenfone 4 Pro Zs551Kl	Samsung Galaxy S25 Edge
Introduction Time	August 2017
Availability Status	Released	Releasing soon
Official Release Date	October 2017
Operating System Type at Release	Android	Android
Operating System at Release	Android 7.1.1 (Nougat)	Android 15
Size and Dimensions	156.9 x 75.6 x 7.6 mm	158.2x75.6x5.8 mm (6.23x2.98x0.23 inches)
Product Weight	175 gram (g)	163 gram (g)
Front Panel Material	Glass - Gorilla Glass 5	-
Frame material type	Metal - Stainless Steel	-
Screen Size	5.5 inch	6.7 inch
Display Panel Type
Display Resolution
Pixel Density Range
Screen-to-Body Ratio	~70.3 percent (%)	~92.1 percent (%)
Screen Aspect Ratio		-
Memory Card Slot	true	false
Bluetooth Support
Supported Memory Card Capacity		-
Main Camera Type - Wide/Standard	12 megapixel (mp)	200 megapixel (mp)
Telephoto Lens	16 megapixel (mp)	-
Maximum Video Recording Quality of Rear Camera	4K	-
Main Selfie Camera Quality	8 megapixel (mp)	12 megapixel (mp)
Battery Capacity	3600mAh	3900mAh
Battery Technology	Lithium-Ion	-
Battery Replaceability	Non-user replaceable	-
Connection Port Type		-
OTG Support	false	-
Speaker Type	Stereo (dual)	-
Number of 3.5mm Jacks	true	-
Fingerprint Sensor Type	On the front of the phone	-
Wi-Fi Specifications		-
Communication Technologies		-
5G Support	false	-
Navigation Type and GPS		-
Price Range at Time of Release	-	1099.99 dollar ($) \$
Operating System Details and Description	-	Android 15, One UI 7
Color Options	-	Titanium Ice Blue, Silver, Titanium Black
Highest Refresh Rate	-	120 hertz (hz)
RAM Memory	-
Main Selfie Camera Specifications	-
Maximum Supported Charging Power	-
Wireless Charging Support	-	true
Full Charge Time	-
Maximum Wireless Charging Power	-
Chipset Model	-
GPU Model	-
Rear Camera Details	-	200 , f/1.7, (wide), 1/1.56", PDAF, OIS 12 , f/2.2, (ultrawide), PDAF megapixel (mp)
Fast Charging Capability	-	true

View Comparison Details

Compare Apple iPhone 17 Prowith Asus Zenfone 4 Pro Zs551Kl

Apple VS ASUS

Feature	Apple iPhone 17 Pro	Asus Zenfone 4 Pro Zs551Kl
Navigation Type and GPS	GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS, NavIC
Fingerprint Sensor Type	No (Face ID)	On the front of the phone
5G Support	Yes	false
Wi-Fi Specifications	Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, hotspot
Wi-Fi Details and Description	-	-
Bluetooth Details and Description	A2DP, LE	-
Communication Technologies	GSM / CDMA / HSPA / EVDO / LTE / 5G
Maximum Video Recording Resolution of Selfie Camera	4K	-
Resolution and Frame Rate of Selfie Video	4K@24/25/30/60fps, 1080p@25/30/60/120fps, gyro-EIS	-
Main Selfie Camera Specifications	18 MP multi-aspect, f/1.9, 20mm (ultrawide), PDAF	-
Selfie Camera Video Recording Details	HDR, Dolby Vision HDR, 3D (spatial) audio, stereo sound rec., ProRes RAW, Apple Log 2	-
Depth Sensor and Identity Recognition Camera	SL 3D, (depth/biometrics sensor)	-
Second Selfie Camera Lens	No	-
Main Selfie Camera Quality	18 Megapixels	8 megapixel (mp)
Maximum Supported Charging Power	Wired, PD3.2, AVS	-
Wireless Charging Support	Yes (25W MagSafe / Qi2)	-
Full Charge Time	50% in 20 minutes (wired) / 50% in 30 minutes (wireless)	-
Maximum Wireless Charging Power	25W	-
Other Port Specifications	DisplayPort	-
Other battery and charging features	4.5W reverse charging (Reverse wired)	-
Connection Port Type	USB Type-C 3.2 Gen 2
OTG Support	Yes	false
Battery Replaceability	No	Non-user replaceable
Fast Charging Capability	Yes	-
Compatible SIM Card Types	Nano-SIM, eSIM	-
Speaker Type	Stereo	Stereo (dual)
Number of 3.5mm Jacks	No	true
Maximum Video Recording Quality of Rear Camera	4K	4K
Ultra-Wide Lens	48 megapixel (mp)	-
Ultra-Wide Camera Details	f/2.2, 13mm, 120°, 1/2.55", 0.7µm, PDAF	-
Telephoto Camera Details	f/2.8, 100mm (periscope telephoto), 1/2.55", 0.7µm, PDAF, 3D sensor-shift OIS, 4x optical zoom	-
Telephoto Lens	48 megapixel (mp)	16 megapixel (mp)
Depth Sensor Camera	TOF 3D LiDAR	-
Depth Sensor Camera Details	TOF 3D LiDAR scanner (depth)	-
Filming Details	4K@24/25/30/60/100/120fps, 1080p@25/30/60/120/240fps, 10-bit HDR, Dolby Vision HDR, ProRes, 3D video	-
Rear Camera Details	Triple	-
Main Camera Type - Wide/Standard	48 megapixel (mp)	12 megapixel (mp)
Main Camera Specifications - Wide/Standard	48 MP, f/1.8, 24mm (wide), 1/1.28", 1.22µm, dual pixel PDAF, sensor-shift OIS	-
Video Quality: Resolution and Frame Rate	4K@120fps	-
Operating System Details and Description	Upgradable to iOS 26.1	-
Specific absorption rate (SAR)	1.19 W/kg (head), 1.19 W/kg (body)	-
European SAR rate (SAR EU)	1.49 W/kg (head), 1.49 W/kg (body)	-
Part Numbers		-
Price Range at Time of Release		-
Introduction Time	2025-09-08T20:29:16.000Z	August 2017
Availability Status	Available (Released 2025, September 19)	Released
Official Release Date	2025-09-18T20:29:16.000Z	October 2017
Operating System Type at Release	iOS	Android
Operating System at Release	iOS 26	Android 7.1.1 (Nougat)
Back body material	Glass (Ceramic Shield) / Aluminum	-
Front Panel Material	Glass (Ceramic Shield 2)	Glass - Gorilla Glass 5
Frame material type	Aluminum (Aluminum alloy)	Metal - Stainless Steel
Highest Refresh Rate	120 hertz (hz)	-
Display Technical Details	HDR10, Dolby Vision, 1000 nits (typ), 1600 nits (HBM)	-
Pixel Density Range	~460 ppi
Screen-to-Body Ratio		~70.3 percent (%)
Display Resolution	1206 x 2622 pixels
Display Panel Type	LTPO Super Retina XDR OLED
Screen Size	6.3 inch	5.5 inch
Maximum Brightness Level	3000 nits (Peak)	-
Screen Aspect Ratio	19.5:9
Internal Storage Type	NVMe	-
RAM Memory	12 GB	-
Internal Memory Capacity	256GB, 512GB, 1TB	-
Chipset Model	Apple A19 Pro	-
Chip Manufacturing Process	3 nm	-
Number of Processor Cores	6-core (Hexa-core)	-
Processor Core Details	2x4.26 GHz + 4xX.X GHz	-
Supported HDR Standards	HDR10, Dolby Vision	-
GPU Model	Apple GPU (6-core graphics)	-
Memory Card Slot Type	No	-
Size and Dimensions	150 x 71.9 x 8.8 mm	156.9 x 75.6 x 7.6 mm
Product Weight	206 gram (g)	175 gram (g)
Color Options	Silver, Cosmic Orange, Deep Blue	-
Smart Sensors	Face ID, accelerometer, gyro, proximity, compass, barometer, UWB (gen2)	-
Bluetooth Support	Yes (version 6.0)
Memory Card Slot	No	true
Battery Technology	Lithium-Ion (Li-Ion)	Lithium-Ion
Battery Capacity		3600mAh
Supported Memory Card Capacity	-

View Comparison Details

Compare Apple iPhone 17 Pro Maxwith Asus Zenfone 4 Pro Zs551Kl

Apple VS ASUS

Feature	Apple iPhone 17 Pro Max	Asus Zenfone 4 Pro Zs551Kl
Navigation Type and GPS	GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS, NavIC
Fingerprint Sensor Type	No (Face ID)	On the front of the phone
5G Support	Yes	false
Wi-Fi Specifications	Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, hotspot
Bluetooth Details and Description	A2DP, LE	-
Communication Technologies	GSM / CDMA / HSPA / EVDO / LTE / 5G
Maximum Video Recording Resolution of Selfie Camera	4K	-
Resolution and Frame Rate of Selfie Video	4K@24/25/30/60fps, 1080p@25/30/60/120fps, gyro-EIS	-
Main Selfie Camera Specifications	18 MP multi-aspect, f/1.9, 20mm (ultrawide), PDAF	-
Selfie Camera Video Recording Details	HDR, Dolby Vision HDR, 3D (spatial) audio, stereo sound rec., ProRes RAW, Apple Log 2	-
Depth Sensor and Identity Recognition Camera	SL 3D, (depth/biometrics sensor)	-
Second Selfie Camera Lens	No	-
Main Selfie Camera Quality	18 Megapixels	8 megapixel (mp)
Maximum Supported Charging Power	Wired, PD3.2, AVS	-
Wireless Charging Support	Yes (25W MagSafe / Qi2)	-
Full Charge Time	50% in 20 minutes (wired) / 50% in 30 minutes (wireless)	-
Maximum Wireless Charging Power	25W	-
Other Port Specifications	DisplayPort	-
Other battery and charging features	4.5W reverse charging (Reverse wired)	-
Connection Port Type	USB Type-C 3.2 Gen 2
OTG Support	Yes	false
Battery Replaceability	No	Non-user replaceable
Fast Charging Capability	Yes	-
Compatible SIM Card Types	Nano-SIM, eSIM	-
Speaker Type	Stereo	Stereo (dual)
Number of 3.5mm Jacks	No	true
Maximum Video Recording Quality of Rear Camera	4K	4K
Ultra-Wide Lens	48 megapixel (mp)	-
Ultra-Wide Camera Details	f/2.2, 13mm, 120°, 1/2.55", 0.7µm, PDAF	-
Telephoto Camera Details	f/2.8, 100mm (periscope telephoto), 1/2.55", 0.7µm, PDAF, 3D sensor-shift OIS, 4x optical zoom	-
Telephoto Lens	48 megapixel (mp)	16 megapixel (mp)
Depth Sensor Camera	TOF 3D LiDAR	-
Depth Sensor Camera Details	TOF 3D LiDAR scanner (depth)	-
Filming Details	4K@24/25/30/60/100/120fps, 1080p@25/30/60/120/240fps, 10-bit HDR, Dolby Vision HDR, ProRes, 3D video	-
Rear Camera Details	Triple	-
Main Camera Type - Wide/Standard	48 megapixel (mp)	12 megapixel (mp)
Main Camera Specifications - Wide/Standard	48 MP, f/1.8, 24mm (wide), 1/1.28", 1.22µm, dual pixel PDAF, sensor-shift OIS	-
Video Quality: Resolution and Frame Rate	4K@120fps	-
Operating System Details and Description	Upgradable to iOS 26.1	-
Specific absorption rate (SAR)	1.19 W/kg (head), 1.19 W/kg (body)	-
European SAR rate (SAR EU)	1.49 W/kg (head), 1.49 W/kg (body)	-
Part Numbers	iPhone18,2, A3526, A3257, A3527, A3525	-
Price Range at Time of Release	€1,439.00 / $1,499.00	-
Introduction Time	2025-09-08T20:29:16.000Z	August 2017
Availability Status	Available (Released 2025, September 19)	Released
Official Release Date	2025-09-18T20:29:16.000Z	October 2017
Operating System Type at Release	iOS	Android
Operating System at Release	iOS 26	Android 7.1.1 (Nougat)
Back body material	Glass (Ceramic Shield) / Aluminum	-
Front Panel Material	Glass (Ceramic Shield 2)	Glass - Gorilla Glass 5
Frame material type	Aluminum (Aluminum alloy)	Metal - Stainless Steel
Highest Refresh Rate	120 hertz (hz)	-
Display Technical Details	HDR10, Dolby Vision, 1000 nits (typ), 1600 nits (HBM)	-
Pixel Density Range	~460 ppi
Screen-to-Body Ratio	90.7 percent	~70.3 percent (%)
Display Resolution	1320 x 2868 pixels
Display Panel Type	LTPO Super Retina XDR OLED
Screen Size	6.9 inch	5.5 inch
Maximum Brightness Level	3000 nits (Peak)	-
Screen Aspect Ratio	19.5:9
Internal Storage Type	NVMe	-
RAM Memory	12 GB	-
Internal Memory Capacity	256GB, 512GB, 1TB, 2TB	-
Chipset Model	Apple A19 Pro	-
Chip Manufacturing Process	3 nm	-
Number of Processor Cores	6-core (Hexa-core)	-
Processor Core Details	2x4.26 GHz + 4xX.X GHz	-
Supported HDR Standards	HDR10, Dolby Vision	-
GPU Model	Apple GPU (6-core graphics)	-
Memory Card Slot Type	No	-
Size and Dimensions	163.4 x 78 x 8.8 mm	156.9 x 75.6 x 7.6 mm
Product Weight	233 gram (g)	175 gram (g)
Color Options	Silver, Cosmic Orange, Deep Blue	-
Smart Sensors	Face ID, accelerometer, gyro, proximity, compass, barometer, UWB (gen2)	-
Bluetooth Support	Yes (version 6.0)
Memory Card Slot	No	true
Battery Technology	Lithium-Ion (Li-Ion)	Lithium-Ion
Battery Capacity	4823 mAh / 5088 mAh (Market dependent)	3600mAh
Supported Memory Card Capacity	-

View Comparison Details

Compare Asus Zenfone 4 Pro Zs551Klwith Apple iPhone 17 Air

ASUS VS Apple

Feature	Asus Zenfone 4 Pro Zs551Kl	Apple iPhone 17 Air
Introduction Time	August 2017	2025-09-08T20:29:16.000Z
Availability Status	Released	Available (Released 2025, September 19)
Official Release Date	October 2017	2025-09-18T20:29:16.000Z
Operating System Type at Release	Android	iOS
Operating System at Release	Android 7.1.1 (Nougat)	iOS 26
Size and Dimensions	156.9 x 75.6 x 7.6 mm	156.2 x 74.7 x 5.6 mm
Product Weight	175 gram (g)	165 gram (g)
Front Panel Material	Glass - Gorilla Glass 5	Glass (Ceramic Shield 2)
Frame material type	Metal - Stainless Steel	Titanium (Titanium grade 5)
Screen Size	5.5 inch	6.5 inch
Display Panel Type		LTPO Super Retina XDR OLED
Display Resolution		1260 x 2736 pixels
Pixel Density Range		~460 ppi
Screen-to-Body Ratio	~70.3 percent (%)	89.9 percent
Screen Aspect Ratio		19.5:9
Memory Card Slot	true	No
Bluetooth Support		Yes (version 6.0)
Supported Memory Card Capacity		-
Main Camera Type - Wide/Standard	12 megapixel (mp)	48 megapixel (mp)
Telephoto Lens	16 megapixel (mp)	-
Maximum Video Recording Quality of Rear Camera	4K	4K
Main Selfie Camera Quality	8 megapixel (mp)	18 Megapixels
Battery Capacity	3600mAh	3149 mAh
Battery Technology	Lithium-Ion	Lithium-Ion (Li-Ion)
Battery Replaceability	Non-user replaceable	No
Connection Port Type		USB Type-C 2.0
OTG Support	false	Yes
Speaker Type	Stereo (dual)	Yes
Number of 3.5mm Jacks	true	No
Fingerprint Sensor Type	On the front of the phone	No (Face ID)
Wi-Fi Specifications		Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band, hotspot
Communication Technologies		GSM / CDMA / HSPA / EVDO / LTE / 5G
5G Support	false	Yes
Navigation Type and GPS		GPS, GALILEO, GLONASS, QZSS, BDS, NavIC
Bluetooth Details and Description	-	A2DP, LE
Maximum Video Recording Resolution of Selfie Camera	-	4K
Resolution and Frame Rate of Selfie Video	-	4K@24/25/30/60fps, 1080p@25/30/60/120fps, gyro-EIS
Main Selfie Camera Specifications	-	18 MP multi-aspect, f/1.9, 20mm (ultrawide), PDAF
Selfie Camera Video Recording Details	-	HDR, Dolby Vision HDR, 3D (spatial) audio, stereo sound rec.
Depth Sensor and Identity Recognition Camera	-	SL 3D, (depth/biometrics sensor)
Second Selfie Camera Lens	-	No
Maximum Supported Charging Power	-	Wired, PD2.0
Wireless Charging Support	-	Yes (20W MagSafe / Qi2)
Full Charge Time	-	50 percent in 30 minutes
Maximum Wireless Charging Power	-	20W
Other battery and charging features	-	4.5W reverse charging (Reverse wired)
Fast Charging Capability	-	Yes
Compatible SIM Card Types	-	eSIM
Filming Details	-	4K@24/25/30/60fps, 1080p@25/30/60/120/240fps, HDR, Dolby Vision HDR
Rear Camera Details	-	Single
Main Camera Specifications - Wide/Standard	-	48 MP, f/1.6, 26mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, sensor-shift OIS
Video Quality: Resolution and Frame Rate	-	4K@60fps
Operating System Details and Description	-	Upgradable to iOS 26.1
Specific absorption rate (SAR)	-	1.19 W/kg (head), 1.19 W/kg (body)
European SAR rate (SAR EU)	-	1.49 W/kg (head), 1.49 W/kg (body)
Part Numbers	-	iPhone18,4, A3517, A3260, A3518, A3516
Price Range at Time of Release	-	€997.99 / $919.99
Back body material	-	Glass (Ceramic Shield)
Highest Refresh Rate	-	120 hertz (hz)
Display Technical Details	-	HDR10, Dolby Vision, 1000 nits (typ), 1600 nits (HBM)
Maximum Brightness Level	-	3000 nits (Peak)
Internal Storage Type	-	NVMe
RAM Memory	-	12 GB
Internal Memory Capacity	-	256GB, 512GB, 1TB
Equivalent Name	-	iPhone 17 Slim
Chipset Model	-	Apple A19 Pro
Chip Manufacturing Process	-	3 nm
Number of Processor Cores	-	6-core (Hexa-core)
Processor Core Details	-	2x4.26 GHz + 4xX.X GHz
Supported HDR Standards	-	HDR10, Dolby Vision
GPU Model	-	Apple GPU (5-core graphics)
Memory Card Slot Type	-	No
Color Options	-	Space Black, Cloud White, Light Gold, Sky Blue
Smart Sensors	-	Face ID, accelerometer, gyro, proximity, compass, barometer, UWB (gen2)

View Comparison Details

Compare Asus Zenfone 4 Pro Zs551Klwith Google Pixel 10 Pro

ASUS VS Google

Feature	Asus Zenfone 4 Pro Zs551Kl	Google Pixel 10 Pro
Introduction Time	August 2017	2025-08-19T20:29:16.000Z
Availability Status	Released	Available (Released 2025, August 28)
Official Release Date	October 2017	2025-08-27T20:29:16.000Z
Operating System Type at Release	Android	Android
Operating System at Release	Android 7.1.1 (Nougat)	Android 16
Size and Dimensions	156.9 x 75.6 x 7.6 mm	152.8 x 72 x 8.5 mm
Product Weight	175 gram (g)	207 gram (g)
Front Panel Material	Glass - Gorilla Glass 5	Glass (Gorilla Glass Victus 2)
Frame material type	Metal - Stainless Steel	Aluminum
Screen Size	5.5 inch	6.3 inch
Display Panel Type		LTPO OLED
Display Resolution		1280 x 2856 pixels
Pixel Density Range		~495 ppi
Screen-to-Body Ratio	~70.3 percent (%)	87.6%
Screen Aspect Ratio		20:9
Memory Card Slot	true	No
Bluetooth Support		Yes (version 6.0)
Supported Memory Card Capacity		-
Main Camera Type - Wide/Standard	12 megapixel (mp)	50 megapixel (mp)
Telephoto Lens	16 megapixel (mp)	48 megapixel (mp)
Maximum Video Recording Quality of Rear Camera	4K	8K
Main Selfie Camera Quality	8 megapixel (mp)	42 megapixel (mp)
Battery Capacity	3600mAh	4870 mAh
Battery Technology	Lithium-Ion	Lithium-Ion (Li-Ion)
Battery Replaceability	Non-user replaceable	No
Connection Port Type		USB Type-C 3.2
OTG Support	false	Yes
Speaker Type	Stereo (dual)	Stereo
Number of 3.5mm Jacks	true	No
Fingerprint Sensor Type	On the front of the phone	Under display (ultrasonic)
Wi-Fi Specifications		Wi-Fi 802.11 a/b/g/n/ac/6e/7, tri-band
Communication Technologies		GSM / HSPA / LTE / 5G
5G Support	false	true
Navigation Type and GPS		GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS, NavIC
Wi-Fi Details and Description	-	Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, hotspot
Bluetooth Details and Description	-	A2DP, LE, aptX HD
Maximum Video Recording Resolution of Selfie Camera	-	4K
Resolution and Frame Rate of Selfie Video	-	4K@30/60fps, 1080p video recording at 30 fps
Main Selfie Camera Specifications	-	42 MP, f/2.2, 17mm (ultrawide), PDAF
Selfie Camera Video Recording Details	-	HDR, panorama
Second Selfie Camera Lens	-	No
Operating System Details and Description	-	Up to 7 major Android upgrades
Specific absorption rate (SAR)	-	0.99 W/kg (head), 0.99 W/kg (body)
European SAR rate (SAR EU)	-	0.99 W/kg (head), 1.39 W/kg (body)
Part Numbers	-	GEHN3, G4QUR, GN4F5
Price Range at Time of Release	-	€851.98 / $719.98
Back body material	-	Glass (Gorilla Glass Victus 2)
Maximum Supported Charging Power	-	30W
Wireless Charging Support	-	Yes (15W Qi2)
Full Charge Time	-	55% in 30 minutes
Maximum Wireless Charging Power	-	15W
Other Port Specifications	-	PD3.0, PPS
Other battery and charging features	-	Reverse wired charging, Bypass charging
Fast Charging Capability	-	Yes (30W)
Compatible SIM Card Types	-	Nano-SIM, eSIM
Audio capabilities	-	24-bit/192kHz audio
Ultra-Wide Lens	-	48 megapixel (mp)
Ultra-Wide Camera Details	-	f/1.7, 123˚, 1/2.55", dual pixel PDAF
Telephoto Camera Details	-	f/2.8, 113mm, 1/2.55", dual pixel PDAF, OIS, 5x optical zoom
Depth Sensor Camera Details	-	Multi-zone Laser AF
Filming Details	-	8K@30fps (cloud), 4K@24/30/60fps, 1080p@24/30/60/120/240fps; gyro-EIS, OIS, 10-bit HDR
Rear Camera Details	-	Triple
Main Camera Specifications - Wide/Standard	-	f/1.7, 25mm (wide), 1/1.31", 1.2µm, dual pixel PDAF, OIS
Video Quality: Resolution and Frame Rate	-	8K@30fps, 4K@60fps
Highest Refresh Rate	-	120 hertz (hz)
Display Technical Details	-	HDR10+
Maximum Brightness Level	-	3300 nits (Peak)
Internal Storage Type	-	UFS 3.1 (128GB) / UFS 4.0 (others)
RAM Memory	-	16 GB
Internal Memory Capacity	-	128GB, 256GB, 512GB, 1TB
Chipset Model	-	Google Tensor G5
Chip Manufacturing Process	-	3 nm
Number of Processor Cores	-	8 core
Processor Core Details	-	1x3.78 GHz Cortex-X4 & 5x3.05 GHz Cortex-A725 & 2x2.25 GHz Cortex-A520
Supported HDR Standards	-	Ultra-HDR
GPU Model	-	PowerVR DXT-48-1536
Memory Card Slot Type	-	No
Color Options	-	Moonstone, Jade, Porcelain, Obsidian
Smart Sensors	-	Fingerprint (under display), accelerometer, gyro, proximity, compass, barometer, thermometer, UWB

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Compare Asus Zenfone 4 Pro Zs551Klwith Honor X7b 5G

ASUS VS Honor

Feature	Asus Zenfone 4 Pro Zs551Kl	Honor X7b 5G
Introduction Time	August 2017	April 4, 2024
Availability Status	Released	Released
Official Release Date	October 2017	May 2024
Operating System Type at Release	Android	Android
Operating System at Release	Android 7.1.1 (Nougat)	Android 13
Size and Dimensions	156.9 x 75.6 x 7.6 mm	166.7 x 76.5 x 8.2 mm
Product Weight	175 gram (g)	199 gram (g)
Front Panel Material	Glass - Gorilla Glass 5	Glass
Frame material type	Metal - Stainless Steel	-
Screen Size	5.5 inch	6.8 inch
Display Panel Type
Display Resolution
Pixel Density Range
Screen-to-Body Ratio	~70.3 percent (%)	~87.3 percent (%)
Screen Aspect Ratio		20:9
Memory Card Slot	true	false
Bluetooth Support
Supported Memory Card Capacity		-
Main Camera Type - Wide/Standard	12 megapixel (mp)	108 megapixel (mp)
Telephoto Lens	16 megapixel (mp)	-
Maximum Video Recording Quality of Rear Camera	4K
Main Selfie Camera Quality	8 megapixel (mp)	8 megapixel (mp)
Battery Capacity	3600mAh	6000mAh
Battery Technology	Lithium-Ion	Lithium Polymer
Battery Replaceability	Non-user replaceable	Non-user replaceable
Connection Port Type		USB Type-C 2.0
OTG Support	false	true
Speaker Type	Stereo (dual)	Stereo (dual)
Number of 3.5mm Jacks	true	true
Fingerprint Sensor Type	On the front of the phone	On the side of the phone
Wi-Fi Specifications
Communication Technologies		GSM / HSPA / LTE / 5G
5G Support	false	true
Navigation Type and GPS
Highest Refresh Rate	-	90 hertz (hz)
Macro Camera Type	-	2 megapixel (mp)
Depth Sensor Camera	-	2 megapixel (mp)
Maximum Video Recording Resolution of Selfie Camera	-
Maximum Supported Charging Power	-
Wireless Charging Support	-	false
Fast Charging Capability	-	true

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Compare Asus Zenfone 4 Pro Zs551Klwith Xiaomi Redmi Note 11E

ASUS VS XIAOMI

Feature	Asus Zenfone 4 Pro Zs551Kl	Xiaomi Redmi Note 11E
Introduction Time	August 2017	March 2, 2022
Availability Status	Released	Released
Official Release Date	October 2017	March 18, 2022
Operating System Type at Release	Android	Android
Operating System at Release	Android 7.1.1 (Nougat)	Android 11
Size and Dimensions	156.9 x 75.6 x 7.6 mm	164 x 76.1 x 8.9 mm
Product Weight	175 gram (g)	200 gram (g)
Front Panel Material	Glass - Gorilla Glass 5	-
Frame material type	Metal - Stainless Steel	-
Screen Size	5.5 inch	6.58 inch
Display Panel Type
Display Resolution
Pixel Density Range
Screen-to-Body Ratio	~70.3 percent (%)	~83.6 percent (%)
Screen Aspect Ratio		20:9
Memory Card Slot	true	false
Bluetooth Support
Supported Memory Card Capacity		-
Main Camera Type - Wide/Standard	12 megapixel (mp)	50 megapixel (mp)
Telephoto Lens	16 megapixel (mp)	-
Maximum Video Recording Quality of Rear Camera	4K
Main Selfie Camera Quality	8 megapixel (mp)	5 megapixel (mp)
Battery Capacity	3600mAh	5000mAh
Battery Technology	Lithium-Ion	Lithium Polymer
Battery Replaceability	Non-user replaceable	Non-user replaceable
Connection Port Type		USB Type-C 2.0
OTG Support	false	true
Speaker Type	Stereo (dual)	Mono
Number of 3.5mm Jacks	true	true
Fingerprint Sensor Type	On the front of the phone	On the side of the phone
Wi-Fi Specifications
Communication Technologies		GSM / CDMA / HSPA / EVDO / LTE / 5G
5G Support	false	true
Navigation Type and GPS
Price Range at Time of Release	-
Highest Refresh Rate	-	90 hertz (hz)
Depth Sensor Camera	-	2 megapixel (mp)
Maximum Video Recording Resolution of Selfie Camera	-
Maximum Supported Charging Power	-
Wireless Charging Support	-	false
Fast Charging Capability	-	true

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Compare Asus Zenfone 4 Pro Zs551Klwith Nokia C20 Plus

ASUS VS Kia

Feature	Asus Zenfone 4 Pro Zs551Kl	Nokia C20 Plus
Introduction Time	August 2017	June 11, 2021
Availability Status	Released	Released
Official Release Date	October 2017	June 16, 2021
Operating System Type at Release	Android	Android
Operating System at Release	Android 7.1.1 (Nougat)	Android 11 - Go edition
Size and Dimensions	156.9 x 75.6 x 7.6 mm	165.4 x 75.9 mm
Product Weight	175 gram (g)	204.7 gram (g)
Front Panel Material	Glass - Gorilla Glass 5	-
Frame material type	Metal - Stainless Steel	-
Screen Size	5.5 inch	6.5 inch
Display Panel Type
Display Resolution
Pixel Density Range
Screen-to-Body Ratio	~70.3 percent (%)	~81.3 percent (%)
Screen Aspect Ratio		20:9
Memory Card Slot	true	true
Bluetooth Support
Supported Memory Card Capacity		-
Main Camera Type - Wide/Standard	12 megapixel (mp)	8 megapixel (mp)
Telephoto Lens	16 megapixel (mp)	-
Maximum Video Recording Quality of Rear Camera	4K
Main Selfie Camera Quality	8 megapixel (mp)	5 megapixel (mp)
Battery Capacity	3600mAh	4950 mAh
Battery Technology	Lithium-Ion	Lithium-Ion
Battery Replaceability	Non-user replaceable	User replaceable
Connection Port Type
OTG Support	false	false
Speaker Type	Stereo (dual)	Mono
Number of 3.5mm Jacks	true	true
Fingerprint Sensor Type	On the front of the phone	-
Wi-Fi Specifications
Communication Technologies
5G Support	false	false
Navigation Type and GPS
Part Numbers	-
Price Range at Time of Release	-
Memory Card Slot Type	-
Depth Sensor Camera	-	2 megapixel (mp)
Maximum Video Recording Resolution of Selfie Camera	-
Maximum Supported Charging Power	-
Wireless Charging Support	-	false
Fast Charging Capability	-	false

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Compare Asus Zenfone 4 Pro Zs551Klwith Sony Xperia E1 Dual

ASUS VS Sony

Feature	Asus Zenfone 4 Pro Zs551Kl	Sony Xperia E1 Dual
Introduction Time	August 2017	January 2014
Availability Status	Released	Released
Official Release Date	October 2017	March 2014
Operating System Type at Release	Android	Android
Operating System at Release	Android 7.1.1 (Nougat)	Android 4.3 (Jelly Bean)
Size and Dimensions	156.9 x 75.6 x 7.6 mm	118 x 62.4 x 12 mm
Product Weight	175 gram (g)	122 gram (g)
Front Panel Material	Glass - Gorilla Glass 5	-
Frame material type	Metal - Stainless Steel	-
Screen Size	5.5 inch	4.0 inch
Display Panel Type
Display Resolution
Pixel Density Range
Screen-to-Body Ratio	~70.3 percent (%)	~61.8 percent (%)
Screen Aspect Ratio
Memory Card Slot	true	true
Bluetooth Support
Supported Memory Card Capacity
Main Camera Type - Wide/Standard	12 megapixel (mp)	3.15 megapixel (mp)
Telephoto Lens	16 megapixel (mp)	-
Maximum Video Recording Quality of Rear Camera	4K
Main Selfie Camera Quality	8 megapixel (mp)	No selfie camera
Battery Capacity	3600mAh	1750mAh
Battery Technology	Lithium-Ion	Lithium-Ion
Battery Replaceability	Non-user replaceable	User replaceable
Connection Port Type
OTG Support	false	false
Speaker Type	Stereo (dual)	Mono
Number of 3.5mm Jacks	true	true
Fingerprint Sensor Type	On the front of the phone	-
Wi-Fi Specifications
Communication Technologies
5G Support	false	false
Navigation Type and GPS
Price Range at Time of Release	-

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Compare Asus Zenfone 4 Pro Zs551Klwith Oppo Reno12 Pro China

ASUS VS Oppo

Feature	Asus Zenfone 4 Pro Zs551Kl	Oppo Reno12 Pro China
Introduction Time	August 2017	May 23, 2023
Availability Status	Released	Released
Official Release Date	October 2017	May 31, 2023
Operating System Type at Release	Android	Android
Operating System at Release	Android 7.1.1 (Nougat)	Android 14
Size and Dimensions	156.9 x 75.6 x 7.6 mm	161.4 x 74.8 x 7.6 mm
Product Weight	175 gram (g)	183 gram (g)
Front Panel Material	Glass - Gorilla Glass 5	Glass - Gorilla Glass
Frame material type	Metal - Stainless Steel	-
Screen Size	5.5 inch	6.7 inch
Display Panel Type
Display Resolution
Pixel Density Range
Screen-to-Body Ratio	~70.3 percent (%)	~89.5 percent (%)
Screen Aspect Ratio		20:9
Memory Card Slot	true	false
Bluetooth Support		5.4
Supported Memory Card Capacity		-
Main Camera Type - Wide/Standard	12 megapixel (mp)	50 megapixel (mp)
Telephoto Lens	16 megapixel (mp)	50 megapixel (mp)
Maximum Video Recording Quality of Rear Camera	4K	4K
Main Selfie Camera Quality	8 megapixel (mp)	50 megapixel (mp)
Battery Capacity	3600mAh	5000mAh
Battery Technology	Lithium-Ion	-
Battery Replaceability	Non-user replaceable	Non-user replaceable
Connection Port Type		USB Type-C 2.0
OTG Support	false	true
Speaker Type	Stereo (dual)	Mono
Number of 3.5mm Jacks	true	false
Fingerprint Sensor Type	On the front of the phone	Under-display (optical)
Wi-Fi Specifications
Communication Technologies
5G Support	false	true
Navigation Type and GPS
Part Numbers	-
Price Range at Time of Release	-
Highest Refresh Rate	-	120 hertz (hz)
Ultra-Wide Lens	-	8 megapixel (mp)
Maximum Video Recording Resolution of Selfie Camera	-	4K
Maximum Supported Charging Power	-
Wireless Charging Support	-	false
Fast Charging Capability	-	true

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