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Compare 3 products

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Fitbit Ionic Fitness Watch
Fitbit Ionic
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Garmin Forerunner 645 Fitness Watch
Garmin Forerunner 645
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Garmin Vivoactive 4 Fitness Watch
Garmin Vivoactive 4
Available colors
Editiorial reviews
16
3.7 out of 5
7 user ratings
5 stars
0 %
4 stars
85 %
3 stars
14 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
10
3.8 out of 5
6 user ratings
5 stars
16 %
4 stars
50 %
3 stars
33 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
13
4.4 out of 5
8 user ratings
5 stars
62 %
4 stars
37 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
User rating
47
4.1 out of 5
47 user ratings
5 stars
36 %
4 stars
42 %
3 stars
21 %
2 stars
0 %
1 stars
0 %
53
4.0 out of 5
53 user ratings
5 stars
35 %
4 stars
37 %
3 stars
15 %
2 stars
9 %
1 stars
1 %
193
3.5 out of 5
193 user ratings
5 stars
19 %
4 stars
26 %
3 stars
37 %
2 stars
11 %
1 stars
4 %

Display

Touchscreenyesnoyes
Colour screenyesyesyes
Screen resolution
N/A
240 x 240 px260 x 260 px
Display type
N/A
N/A
MIP

Dimensions

Gender
  • Men's
  • Women's
  • Men's
  • Women's
N/A
Width1.5 in1.67 in1.78 in
Depth1.5 in1.67 in1.78 in
Weight1.76 oz1.47 oz1.78 oz
Thickness0.47 in0.53 in
N/A

Design

Colour of product
  • Black
  • Blue
  • Grey
  • Orange
  • Silver
  • White
  • Yellow
  • Beige
  • Black,Stainless steel
  • Grey
  • Purple
  • Black
  • Black,Grey
  • Grey,Silver
  • Silver
Protection featuresWater resistantWater resistantWaterproof
Waterproof depth5055
Band material
N/A
SiliconeSilicone

Features

Heart Rate MonitorBuilt-inBuilt-inBuilt-in
Calorie counteryesyesyes
Alarmyesyesyes
Altimeteryesyes
N/A
Date displayyesyes
N/A
Pedometeryesyes
N/A
Sleep readingyesyes
N/A
Timeryesyesyes
Vibration alarmyesyes
N/A
Distance meter
N/A
yesyes
ANT+
N/A
yes
N/A
Barometer
N/A
yes
N/A
Compass
N/A
yesyes
Display light
N/A
yes
N/A
Speedometer
N/A
yes
N/A
Stopwatch
N/A
yesyes
Temperature sensor
N/A
yesyes

Connectivity

Bluetoothyesyesyes
Bluetooth version4.0
N/A
N/A
GLONASSyesyesyes
GPSyesyesyes

Power

Battery typeLi-polymerBuilt-inBuilt-in
Battery life (running)10.0 h168.0 h
N/A
Battery life (standby mode)4.0 day7.0 day8.0 day

Often compared with Fitbit Ionic

Often compared with Garmin Forerunner 645

Often compared with Garmin Vivoactive 4