Fitbit Alta vs. Fitbit Charge 2 vs. Apple Watch Series 2 vs. Apple Watch vs. HTC re Grip

 
Alta
Charge 2
Watch Series 2
Watch
re Grip
 FitbitAltaRemove Buy NowFitbitCharge 2Remove Buy NowAppleWatch Series 2Remove Buy NowAppleWatchRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$130$150$269$349$199
Release20162016201620152020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days18 hours18 hours5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a340 x 272 or 390 x 312340 x 272 or 390 x 312160 x 32
Sizen/an/a1.5 inches or 1.65 inches1.5 inches or 1.65 inches1.8 inches
Touchn/an/a
TypeOLEDOLEDAMOLEDAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/an/a5ATMIPX7IP57

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aWatch OSWatch OSNA
Apps
Music

All Wearables