Basic Info |
| Wear Type | Wristband | Wristband | |
| Price | $21331 | | |
| Ratings | | | |
Activity & Fitness |
| Activity | Yes | No | Fitbit Flex 2 tracks your activity |
| Calories | Yes | Yes | Both show estimated calories burned |
| Sleep | Yes | No | Fitbit Flex 2 tracks your sleeping time and quality |
| Heart Rate / Pulse | No | Yes | Garmin Forerunner 620 has the heart rate monitoring sensor |
| Distance | Yes | Yes | Both track your stride length |
| Steps | Yes | No | Fitbit Flex 2 has built-in pedometer to count steps |
| Stairs / Floors | No | No | Both don't track climbing stairs or floors |
| Exercise Tagging | No | No | Both don't have exercise tagging |
| Smart Coach | No | No | Both don't have coaching feature |
| Goal Setting | Yes | Yes | Both can help with your goals setting |
| Inactivity Alert | Yes | n/a | Fitbit Flex 2 helps you stay active with inactivity alert |
Additional Features |
| GPS | No | Yes | Garmin Forerunner 620 has GPS support |
| Compass | No | n/a | Both don't have a compass |
| Watch / Clock | Yes | Yes | Both have watch |
| Alarm Clock | Yes | Yes | Both have alarm clock |
| Reminders | Yes | No | Fitbit Flex 2 has a reminder option |
| Stopwatch | No | No | Both don't have stopwatch |
| Music Playback | No | n/a | Both don't have music playback |
| Reports | Activity, Sleep | | |
Smartphone Remote Features |
| Notifications | Yes | No | If you get a phone notification, Fitbit Flex 2 make an alert for you |
| Caller ID | No | No | Both don't show caller ID notification |
| Music Control | No | No | Both don't have phone music control |
| Call Control | No | n/a | Both don't have call control |
| Camera Control | No | n/a | Both don't have camera control |
| Find Phone | No | n/a | Both don't have a find phone feature |
Battery |
| Duration | 5 days | 42 days | Garmin Forerunner 620 battery life is about 8.4 times longer |
| Battery Type | Rechargeable Battery | Rechargeable Battery | |
Physical Specs |
| Weather Resistance | Yes | Yes | |
| Waterproof | Yes | Yes | |
| IP Rating | 5 ATM | n/a | |
| Weight | 24 grams | 44 grams | Fitbit Flex 2 is 20.0 g lighter |
User Interface |
| Display | LED Lights | LCD Screen | |
| Display Size | n/a | n/a | |
| Screen Resolution |
n/a
|
n/a
| |
| Color Display | No | n/a | |
| Touch Screen | No | n/a | |
Compatibility |
| Android | Yes | Yes | Both compatible with Android devices |
| iOS | Yes | Yes | Both compatible iOS devices |
| OS X/Mac | No | No | Both don't compatible MAC OS X devices |
| Windows Phone | Yes | No | Fitbit Flex 2 compatibles with a range of Windows Phone devices |
| Windows | Yes | No | Fitbit Flex 2 allows you to locate your phone |
| Web Portal | No | Yes | Garmin Forerunner 620 allows you upload and view data on the online portal |
| Social Features | No | n/a | Both don't have social features |
Connectivity |
| Bluetooth | Yes | Yes | Both have Bluetooth data transfer technology |
| Wi-Fi | No | No | Both don't have Wi-Fi connection |
| NFC | No | No | Both don't have NFC connectivity |
| ANT+ | No | Yes | Only Garmin Forerunner 620 has ANT+ wireless technology |
| Buy on Amazon | Buy on Amazon | |
