Fitbit Flex 2 vs. Polar M430 vs. Fitbit Alta HR vs. HTC re Grip vs. Apple SE

 
Flex 2
M430
Alta HR
re Grip
SE
 FitbitFlex 2Remove Buy NowPolarM430Remove Buy NowFitbitAlta HRRemove Buy NowHTCre GripRemove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$100$255$150$199$279
Release20162017201720202020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days30 hours7 days5 hours to 2.5 days18 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a128x128128 x 36160 x 32384 x 480
Sizen/a1.4 inch1.4 inches1.8 inches40mm
Touchn/a
TypeLEDLCDOLEDPMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATMWR30IP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWatchOS 5
Apps
Music

All Wearables