Purpose and compatibility
Usage
Unisex
OS compatibility
Android, iOS
Display
Dial Shape
Round
Display diagonal
1.43 "
Display resolution
466 × 466 px
Display type
AMOLED
Glass
Mineral
Design and durability
Case Material
Aluminium
Case colour
Silver
Water resistancy
50 m (5 ATM)
Control
Combined
Weight
44.5 g
Connectivity and sensors
Wireless technology
NFC, Bluetooth
Bluetooth version
5.3
Sensors and hardware
Barometer, Compass, Gyroscope
Connection
GPS
Functions
Sports
Run, Cycling, Walking
Sports tracking function
Pedometer, Pulse, Activity start detection, Distance, Calorie tracking, Tempo
Health functions
Blood Oxygen Saturation Measurement, Monitor sleep, Heart Rate Measurement
Smart features
Mobile Phone Tracking, Music player control in mobile phone, Weather forecast, Fall detection
Location and route tracking
With GPS in the watch
Notifications and calls
Making calls
From watch via paired phone (within Bluetooth range)
Phone notifications
SMS, Social media
Software
App Language
Czech
Interface Language
Czech
Strap
Strap colour
Grey
Strap material
Silicone
Replaceable strap
YES
Min. wrist circumference
13.5 cm
Max. wrist circumference
21 cm
Connection type
22mm Quick Release
Battery life and storage
Max. Battery Life
360 h (15 d)
Normal Battery Life
360 h (15 d)
Battery capacity
486 mAh
Storage Capacity
4.1 GB
Brand/model
Brand
Xiaomi
Model series
Watch S4
