Compare Fitbit Ionic vs Apple Watch Series 4 vs Samsung Gear S3
Smartwatch
Smartwatch
Smartwatch
Release / Update
2017
2018
2016
Suggested Price
$299
$399
$350
Activity & Fitness
Calories
Cycling (Bicycling)
Distance
Heart
VO2max (Oxygen)
Sleep
Steps
Swim
Battery
Duration
3 days
18 hours
4 days
Charging
Rechargeable
Wireless charging
Rechargeable
Compatibility
Android
iOS
Windows Phone
Mac
Windows
Connectivity
Bluetooth
Cellular
GPS
NFC
Wi-Fi
Display
Color
Resolution
348x250
40mm: 324x394 44mm: 368x448
360x360
Size
1.42"
759 sq mm display area 977 sq mm display area
1.3"
Touch
Type
OLED
OLED Retina display with Force Touch, 1000 nits brightness
Fullcolor AOD
Functions
Audio Speaker
Clock
Phone
Vibration
Voice
Camera
Hardware
Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance
5ATM (50 metres)
5ATM (50 metres)
IP68
Notifications
Phone
Emails
Texts
Software
Operating System
Fitbit OS
watchOS 5.0, upgradable to 5.2.1
Tizen OS
Apps
Music
More Info & Buy
Storage
2.5GB
16GB
Extra
Colors: Space Black, Silver, Gold Build: Stainless Steel frame; all-ceramic/sapphire crystal back Bluetooth 5.0; Requires an iPhone 6 or later with iOS 12 or later; Water resistance: Apple Watch 4 should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth.