Amazfit Bip vs. Garmin 645 Music vs. Fitbit Alta HR vs. Fitbit Charge vs. Apple Watch 7

 
Bip
645 Music
Alta HR
Charge
Watch 7
 AmazfitBipRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowFitbitChargeRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$99.99$450$150$130$429
Release20182018201720142021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 days7 days7 days7-10 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution176 x 176240 x 240128 x 36NA396 x 484
Size1.28 inches1.2 inches1.4 inchesNA1.9 inches
TouchNA
TypeNAMIPOLEDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATM1 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemNAWatchOS 8
Apps
Music

All Wearables