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Compare Samsung Gear 2

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Xiaomi Watch S4Xiaomi Watch S4 Black
£ 109,99
3 colours

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Dimensions:36,9 x 58,4 x 10 mm46 x 46,7 x 11,3 mm46 x 46 x 10,95 mm44,5 x 40 x 9,3 mm47,3 x 47,3 x 12 mm
Weight:68 gr63 gr51,3 gr30,4 gr44,5 gr
Stand-by time:dependent on usagedependent on usagedependent on usagedependent on usagedependent on usage
Call time:dependent on usagedependent on usagedependent on usagedependent on usagedependent on usage
Announced:5 april 201415 may 202518 september 202516 may 20252 march 2025

Design type

Watch:

Controls

Directional key:
Touchscreen:CapacitiveCapacitiveCapacitiveMulti-touch, capacitive
Voice command:
Swivel crown:

Operating system

Tizen:

Display

Colour display:Super AMOLEDAdjustable display brightness, AMOLED, Always On featureAdjustable display brightness, AMOLED, Always On featureAdjustable display brightness, AMOLED, Always On feature16.777.216 colours (24 bits), AMOLED, Always On feature
Resolution:320 x 320 pixels466 x 466 pixels466 x 466 pixels480 x 408 pixels466 x 466 pixels
Size:1.63 inch1.5 inch1.47 inch1.82 inch1.43 inch
Aspect ratio:1:11:11:11:1
Pixels Per Inch (PPI):278439448346461
Screen-to-body ratio:39.8%33.8%32.9%59.2%29.5%
Peak brightness:3000 nits3000 nits3000 nits1500 nits
Refresh rate:60 Hz

Hardware

Processor:Dual Core
Clock Frequency:1 GHz
Integrated antenna:

Materials

Dirt and waterproof:IP67IP69, 5 ATMIP69, 5 ATMIP6X, 5 ATM5 ATM
Ceramics:
Glass:
Stainless Steel:
Titanium:
Aluminium:
Sapphire Crystal:

Personal Information
Management (PIM)

Stopwatch & countdown timer:
Agenda:
Alarm clock:
Calculator:
Contact list:
Date and time notation:
Reminder list:
To-do list:

Available applications

Pedometer:
Calories:
Sleep tracker:
Stressmonitor:

Audio

Audio codec support:AAC, AAC+, eAAC+
Audio file support:M4A, MP3
Built-in speakers:
Microphone:

Build-in memory

Internal memory:
Size (RAM):512 MB
Storage:4 GB

Connectivity

Bluetooth:v4.0v5.2v6.0v5.2v5.3
Infrared:
NFC:
Wireless Lan (WLAN/Wi-Fi):Wi-Fi 6 (802.11ax)

Power supply

Battery:Li-ionSi-C (Silicon-carbon)Li-ion
Capacity:300 mAh867 mAh400 mAh486 mAh
Wireless charging:

Sensors

Gesture recognition:
Gyroscope:
Heart rate monitor:
Ambient light sensor:
Barometer:
Depth sensor:
ECG:
Skin temperature sensor:
Thermometer:
Oxygen saturation (SpO2):

Carrying method

Strap:InterchangeableInterchangeableInterchangeableInterchangeable
Wrist Size:140-210 mm140-210 mm130-210 mm135-210 mm

Telephony

eSIM:
Flight mode:
Integrated handsfree speaker:
Vibrating alert:

Personalisation

Multiple homescreens:
Widgets:

Navigation

Beidou:
Digital Compass:
Galileo:
GLONASS:
GPS receiver:
Quasi-Zenith (QZSS):

Compatibility

With Android:From 9.0From 9.0From 8.0From 8.0
With iOS:From 13.0From 13.0From 13.0From 14.0

Contents of the package

Oplader:
Quick start guide:
Safety booklet:
Warranty card:
Charging cable:
Oplaadcase:
Wristband:
Charging station:
Manual:

Connections

Pogo pin:

User interface

HyperOS:2.0
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