Basic Info |
| Wear Type | Wristband | Wristband | |
| Price | $10286 | $21331 | Fitbit Alta HR is 2.1x cheaper |
| Ratings | | | |
Activity & Fitness |
| Activity | Yes | Yes | Both track daily activity |
| Calories | Yes | Yes | Both show estimated calories burned |
| Sleep | Yes | Yes | Both track sleep pattern |
| Heart Rate / Pulse | Yes | No | Fitbit Alta HR has built-in heart rate monitor |
| Distance | Yes | Yes | Both track your running/walking distance |
| Steps | Yes | Yes | Both track how many steps you take |
| Stairs / Floors | No | No | Both don't track climbing stairs or floors |
| Exercise Tagging | Yes | No | Only Fitbit Alta HR provides 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 | n/a | Yes | Fitbit Flex 2 helps you stay active with inactivity alert |
Additional Features |
| GPS | No | No | Both don't have built-in GPS support |
| Compass | n/a | No | Both don't have a compass |
| Watch / Clock | Yes | Yes | Both have watch |
| Alarm Clock | Yes | Yes | Both have alarm clock |
| Reminders | Yes | Yes | Both have reminder app |
| Stopwatch | No | No | Both don't have stopwatch |
| Music Playback | n/a | No | Both don't have music playback |
| Reports | Activity, Sleep | Activity, Sleep | |
Smartphone Remote Features |
| Notifications | Yes | Yes | Both show smartphone notifications |
| Caller ID | Yes | No | Fitbit Alta HR can notify you who is calling |
| Music Control | No | No | Both don't have phone music control |
| Call Control | n/a | No | Both don't have call control |
| Camera Control | n/a | No | Both don't have camera control |
| Find Phone | n/a | No | Both don't have a find phone feature |
Battery |
| Duration | 7 days | 5 days | Fitbit Alta HR battery life is about 1.4 times longer |
| Battery Type | Rechargeable Battery | Rechargeable Battery | |
Physical Specs |
| Weather Resistance | No | Yes | |
| Waterproof | No | Yes | |
| IP Rating | n/a | 5 ATM | |
| Weight | n/a | 24 grams | |
User Interface |
| Display | OLED Screen | LED Lights | |
| Display Size | n/a | n/a | |
| Screen Resolution |
n/a
|
n/a
| |
| Color Display | n/a | No | |
| Touch Screen | n/a | No | |
Compatibility |
| Android | Yes | Yes | Both compatible with Android devices |
| iOS | Yes | Yes | Both compatible iOS devices |
| OS X/Mac | Yes | No | Fitbit Alta HR compatibles with MacBooks and iMacs |
| Windows Phone | Yes | Yes | Both compatible with Windows Phone devices |
| Windows | Yes | Yes | Both can help find your smartphone |
| Web Portal | No | No | Both don't have online web portal option |
| Social Features | n/a | No | 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 | No | Both don't provide ANT+ wireless technology |
| Buy on Amazon | Buy on Amazon | |
