Watch Series 2 Ionic Alta Vivosmart Vivosmart HR
  Apple Watch Series 2 Remove Buy Now Fitbit Ionic Remove Buy Now Fitbit Alta Remove Buy Now Garmin Vivosmart Remove Buy Now Garmin Vivosmart HR Remove Buy Now

Basic Info

Suggested Price $269 $299 $130 $170 $170
Release 2016 2017 2016 2014 2015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart n/a
Oxygen
Sleep
Steps
Swim

Battery

Duration 18 hours 4+ days 5 days 7 days 5 days
Rechargeable

Compatibility

Android
iOS
Windows Phone n/a n/a
Mac n/a n/a
Windows n/a n/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution 340 x 272 or 390 x 312 348x250 n/a 128 x 16 160 x 68
Size 1.5 inches or 1.65 inches 1.42 n/a 1.41 inches 1.08 inches
Touch n/a
Type AMOLED OLED OLED OLED n/a

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance 5ATM 50m n/a 5 ATM 5 ATM

Notifications

Phone
Emails n/a
Texts

Software

Operating System Watch OS Fitbit OS n/a n/a n/a
Apps
Music

All Wearables