Amazfit Bip vs. Garmin 645 Music vs. Garmin Forerunner 45 vs. Amazfit T-Rex vs. Fitbit Sense 2

 
Bip
645 Music
Forerunner 45
T-Rex
Sense 2
 AmazfitBipRemove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$99.99$450$199$140$300
Release20182018201920192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 days7 days7 days20 days6 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution176 x 176240 x 240208 x 208360 x 360336x336
Size1.28 inches1.2 inches1.04 inches1.3 inches1.59 inches
Touch
TypeNAMIPLCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemBuilt-inBuild-in
Apps
Music

All Wearables