Fitbit Flex 2 vs. Garmin Vivosmart 4 vs. HTC re Grip vs. Apple SE vs. Apple Watch Ultra

 
Flex 2
Vivosmart 4
re Grip
SE
Watch Ultra
 FitbitFlex 2Remove Buy NowGarminVivosmart 4Remove Buy NowHTCre GripRemove Buy NowAppleSERemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$100$130$199$279$799
Release20162018202020202022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days5 hours to 2.5 days18 hours36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a48 x 128160 x 32384 x 480502x410 pixels
Sizen/a0.74 inches1.8 inches40mm1.92 inches
Touchn/a
TypeLEDOLEDPMOLEDMicroLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATM5 ATMIP5710 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWatchOS 5WatchOS 9
Apps
Music

All Wearables