Initial data or main information
Official Release Date	2026, February 18	2025, March 02
Operating System at Release	Android 16, up to 3 major Android upgrades, XOS 16	Android 15, up to 6 major Android upgrades, One UI 8.5
Part Numbers	X6878	SM-A366E, SM-A366E/DS, SM-A366B, SM-A366B/DS, SM-A366U, SM-A366U1, SM-A366W
Price Range at Time of Release	₹ 31,999	€ 239.00 / $ 194.44 / £ 199.00 / ₹ 27,380
Specific absorption rate (SAR)	-	1.07 W/kg (head)
European SAR rate (SAR EU)	-	0.53 W/kg (head) 1.29 W/kg (body)

Time and method of release

Time and method of release
Availability Status	Available. Released 2026, March	Available. Released 2025, March 10

Aesthetic features

Aesthetic features
Size and Dimensions	162.4 x 77.2 x 7.4 mm (6.39 x 3.04 x 0.29 in)	162.9 x 78.2 x 7.4 mm (6.41 x 3.08 x 0.29 in)
Product Weight	201.7 g	195 g
Color Options	Mist Titanium, Deep Ocean Blue, Solar Orange, Mocha Brown, Torino Black, Frost Silver	Lavender, Black, White, Lime

Style and design

Style and design
Front Panel Material	Glass front (Gorilla Glass 7i), aluminum frame, glass back	Glass front (Gorilla Glass Victus+), plastic frame, glass back (Gorilla Glass Victus+)
Frame material type	IP64 dust tight and water resistant (water splashes)	IP67 dust/water resistant (up to 1m for 30 min)

Body material and design

Body material and design
Compatible SIM Card Types	Nano-SIM + Nano-SIM + eSIM (max 2 at a time)	· Nano-SIM + eSIM Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)

Display

Display
Display Panel Type	AMOLED, 144Hz, 2304Hz PWM, 700 nits (typ), 1600 nits (HBM), 4500 nits (peak)	Super AMOLED, 120Hz, 1200 nits (HBM), 1900 nits (peak)
Screen Size	6.78 inches, 112.1 cm 2 (~89.4% screen-to-body ratio)	6.7 inches, 110.2 cm 2 (~86.5% screen-to-body ratio)
Display Resolution	1208 x 2644 pixels, 19.5:9 ratio (~429 ppi density)	1080 x 2340 pixels, 19.5:9 ratio (~385 ppi density)
Screen Aspect Ratio	19.5:9 ratio	-
Display Technical Details	-	Corning Gorilla Glass Victus+, Mohs level 5
Maximum Brightness Level	-	1233 nits max brightness (measured)

Processor or chip

Processor or chip
Chipset Model	Qualcomm SM7635-AC Snapdragon 7s Gen 4 (4 nm)	Qualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm)
Processor Core Details	1x2.7 GHz Cortex-A720 & 3x2.4 GHz Cortex-A720 & 4x1.8 GHz Cortex-A520	Octa-core (4x2.4 GHz Cortex-A78 & 4x1.8 GHz Cortex-A55)
Other Technical Details of Chipset	-	Virtual Proximity Sensing

Central Processor (CPU)

Central Processor (CPU)
GPU Model	Adreno 810	Adreno 710

Connections

Connections
Memory Card Slot	No	No
Bluetooth Support	5.4, A2DP, LE	5.4, A2DP, LE

Storage memory

Storage memory
Internal Memory Capacity	128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM	128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
Internal Storage Type	UFS 2.2	UFS 2.2

Front camera

Front camera
Main Selfie Camera Specifications	13 MP, f/2.2, 24mm (wide), 1/3.1", 1.12µm	12 MP, f/2.2, (wide)
Resolution and Frame Rate of Selfie Video	4K@30fps, 1080p@30/60fps	4K@30fps, 1080p@30fps, 10-bit HDR

Audio features

Communications and sensors

Communications and sensors
Wi-Fi Specifications	Wi-Fi 802.11 a/b/g/n/ac/6, dual-band	Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Navigation Type and GPS	GPS	GPS, GALILEO, GLONASS, BDS, QZSS
Fingerprint Sensor Type	optical	-
5G Support	SA/NSA	1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - International

Battery and charging features

Battery and charging features
Connection Port Type	USB Type-C 2.0, OTG	USB Type-C 2.0, OTG
Maximum Supported Charging Power	90W wired	-
Full Charge Time	41 min (6500 mAh)	-

Capabilities

Capabilities
Smart Sensors	Fingerprint (under display, optical), accelerometer, gyro, proximity, compass, heart rate, SpO2	Fingerprint (under display, optical), accelerometer, gyro, compass

Power supply and battery life

Power supply and battery life
Battery Technology	6000 mAh or 6500 mAh	5000 mAh

Technical features

Technical features
Fast Charging Capability	90W wired, 50% in 16 min, 100% in 41 min (6500 mAh)	45W wired, 66% in 30 min, 100% in 68 min

Identity and ethnicity

Identity and ethnicity
Technology	GSM / HSPA / LTE / 5G	-

Energy and Training

Energy and Training
Protection	Corning Gorilla Glass 7i	-

Other features

Other features
Features	Dual-LED flash, HDR, panorama	-

Technical Details

Technical Details
Performance	AnTuTu: 868860 (v10), 963648 (v11) GeekBench: 3412 (v6) 3DMark: 1219 (Wild Life Extreme)	AnTuTu: 613492 (v10)

Design

Design
Display	1694 nits max brightness (measured)	-

Motorcycle Technical Features

Motorcycle Technical Features
Battery	Active use score 16:06h	41:28h endurance, 2000 cycles

Visual details

Visual details
Supported HDR Standards	Ultra HDR support	-

Main camera

Main camera
Main Camera Specifications - Wide/Standard	50 MP, f/1.6, 27mm (wide), 1/1.95", 0.8µm, PDAF (9cm - ∞), OIS	LED flash, panorama, HDR
Maximum Video Recording Quality of Rear Camera	4K@30fps	4K@30fps, 1080p@30/60fps, gyro-EIS
Rear Camera Details	-	50 MP, f/1.8, (wide), 1/1.96", 0.8µm, PDAF, OIS