Page 16 from comparison Lenovo X4

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Feature	Lenovo X4	Samsung Galaxy Buds2 Pro
Headphone Style	On-Ear	In-Ear
Acoustic Design	Open-Back	Closed-Back
Connection Type	Wireless	Wireless
Wireless Headphone Style	Wireless (Wired connection between earpieces, wireless to source)	True Wireless (Wireless connection between earpieces and to source)
Audio and Conversation Controls	true	true
Bluetooth Support	true	true
Available Bluetooth Version
Operational Range	10 meter (m)	10 meter (m)
NFC Support	false	false
Hi-Res Capability	false	false
Memory Card Support	false	false
Active Noise Cancelling (ANC) Capability	false	true
Internal Microphone	true	true
Microphone Noise Cancelling Capability	false	true
Charging Method	Via Micro USB port	Via charging case with USB Type-C port
LED Status Indicator	true	true
Product Weight	25 gram (g)	5.5 g (Each Earbud) / 43.4 g (Charging Case)
Driver Diameter	-	10 millimeter (mm)
Size and Dimensions	-	18.7 x 19.9 x 21.6 mm (earbud) / 27.7 x 50.1 x 50.2 mm (charging case)

Lenovo VS Haylou

Feature	Haylou W1	Lenovo X4
Headphone Style	On-Ear	In-Ear
Acoustic Design	Open-Back	Closed-Back
Connection Type	Wireless	Wireless
Wireless Headphone Style	Wireless (Wired connection between earpieces, wireless to source)	True Wireless (Wireless connection between earpieces and to source)
Audio and Conversation Controls	true	true
Bluetooth Support	true	true
Available Bluetooth Version
Operational Range	10 meter (m)	10 meter (m)
NFC Support	false	false
Hi-Res Capability	false	false
Memory Card Support	false	false
Active Noise Cancelling (ANC) Capability	false	false
Internal Microphone	true	true
Microphone Noise Cancelling Capability	false	true
Charging Method	Via Micro USB port	Via charging case with USB Type-C port
LED Status Indicator	true	true
Product Weight	25 gram (g)	-
Detachable Cable Feature	-	false

Lenovo VS Samsung

Feature	Lenovo X4	Samsung Hs130
Headphone Style	On-Ear	In-Ear
Acoustic Design	Open-Back	Closed-Back
Connection Type	Wireless	Wired
Wireless Headphone Style	Wireless (Wired connection between earpieces, wireless to source)	-
Audio and Conversation Controls	true	true
Bluetooth Support	true	false
Available Bluetooth Version		-
Operational Range	10 meter (m)	-
NFC Support	false	false
Hi-Res Capability	false	-
Memory Card Support	false	false
Active Noise Cancelling (ANC) Capability	false	false
Internal Microphone	true	true
Microphone Noise Cancelling Capability	false	-
Charging Method	Via Micro USB port	-
LED Status Indicator	true	-
Product Weight	25 gram (g)	11.8 gram (g)
Detachable Cable Feature	-	false
Cable Length	-	1.2 meter (m)
Driver Diameter	-	8 millimeter (mm)
Impedance	-	32 ohm (Ω)

Lenovo VS Haylou

Feature	Haylou X1 Pro	Lenovo X4
Headphone Style	On-Ear	In-Ear
Acoustic Design	Open-Back	Closed-Back
Connection Type	Wireless	Wireless
Wireless Headphone Style	Wireless (Wired connection between earpieces, wireless to source)	True Wireless (Wireless connection between earpieces and to source)
Audio and Conversation Controls	true	true
Bluetooth Support	true	true
Available Bluetooth Version
Operational Range	10 meter (m)	10 meter (m)
NFC Support	false	false
Hi-Res Capability	false	false
Memory Card Support	false	false
Active Noise Cancelling (ANC) Capability	false	true
Internal Microphone	true	true
Microphone Noise Cancelling Capability	false	true
Charging Method	Via Micro USB port	Via charging case with USB Type-C port
LED Status Indicator	true	true
Product Weight	25 gram (g)	-
Battery Technology	-	Lithium Polymer

Lenovo VS Samsung

Feature	Lenovo X4	Samsung Eo Ic100Bbegus
Headphone Style	On-Ear	In-Ear
Acoustic Design	Open-Back	Closed-Back
Connection Type	Wireless	Wired
Wireless Headphone Style	Wireless (Wired connection between earpieces, wireless to source)	-
Audio and Conversation Controls	true	true
Bluetooth Support	true	false
Available Bluetooth Version		-
Operational Range	10 meter (m)	-
NFC Support	false	false
Hi-Res Capability	false	-
Memory Card Support	false	false
Active Noise Cancelling (ANC) Capability	false	false
Internal Microphone	true	true
Microphone Noise Cancelling Capability	false	-
Charging Method	Via Micro USB port	-
LED Status Indicator	true	-
Product Weight	25 gram (g)	22.9 gram (g)
Equivalent Name	-

Lenovo VS Ds

Feature	Lenovo X4	Samsung Galaxy Buds Pro
Headphone Style	On-Ear	In-Ear
Acoustic Design	Open-Back	Closed-Back
Connection Type	Wireless	Wireless
Wireless Headphone Style	Wireless (Wired connection between earpieces, wireless to source)	True Wireless (Wireless connection between earpieces and to source)
Audio and Conversation Controls	true	true
Bluetooth Support	true	true
Available Bluetooth Version
Operational Range	10 meter (m)	-
NFC Support	false	false
Hi-Res Capability	false	false
Memory Card Support	false	false
Active Noise Cancelling (ANC) Capability	false	true
Internal Microphone	true	true
Microphone Noise Cancelling Capability	false	true
Charging Method	Via Micro USB port	Via charging case with USB Type-C port and Qi wireless charging
LED Status Indicator	true	true
Product Weight	25 gram (g)	6.3 g (Each Earbud) / 44.9 g (Charging Case)
Size and Dimensions	-	20.8 x 19.5 x 20.5 mm (earbud) / 27.8 x 50.2 x 50 mm (charging case)

Lenovo VS Ds

Feature	Lenovo X4	Xiaomi Redmi Buds 5
Headphone Style	On-Ear	In-Ear
Acoustic Design	Open-Back	Closed-Back
Connection Type	Wireless	Wireless
Wireless Headphone Style	Wireless (Wired connection between earpieces, wireless to source)	True Wireless (Wireless connection between earpieces and to source)
Audio and Conversation Controls	true	true
Bluetooth Support	true	true
Available Bluetooth Version
Operational Range	10 meter (m)	10 meter (m)
NFC Support	false	false
Hi-Res Capability	false	false
Memory Card Support	false	false
Active Noise Cancelling (ANC) Capability	false	true
Internal Microphone	true	true
Microphone Noise Cancelling Capability	false	true
Charging Method	Via Micro USB port	Via charging case with USB Type-C port
LED Status Indicator	true	true
Product Weight	25 gram (g)	5.3 g (Each Earbud) / Charging Case: 31.4 g
Equivalent Name	-
Detachable Cable Feature	-	false
Driver Diameter	-	12.4 millimeter (mm)
Driver Magnet	-	Neodymium
Impedance	-	32 ohm (Ω)
Size and Dimensions	-	21.4 x 23.5 x 29.5 mm (each earbud) / 24.6 x 50 x 61 mm (charging case)