Basic Info |
| Wear Type | Wristband | Wristband | |
| Price | $21331 | | |
| Ratings | | | |
Activity & Fitness |
| Activity | Yes | Yes | Both track daily activity |
| Calories | Yes | Yes | Both track calories burned |
| Sleep | Yes | No | Fitbit Flex 2 monitors your sleep pattern |
| Heart Rate / Pulse | No | Yes | Polar RS800CX has the heart rate monitoring sensor |
| Distance | Yes | Yes | Both track your running/walking distance |
| Steps | Yes | No | Fitbit Flex 2 counts your steps |
| Pace | No | Yes | |
| Speed | No | Yes | |
| Stairs / Floors | No | No | Both don't have elevation feature |
| 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 | No | Fitbit Flex 2 helps you stay active with inactivity alert |
Additional Features |
| GPS | No | Yes | Polar RS800CX has GPS support |
| Compass | No | No | Both don't have a compass |
| Watch / Clock | Yes | Yes | Both have watch |
| Alarm Clock | Yes | No | Fitbit Flex 2 has a alarm clock |
| Reminders | Yes | Yes | Both have reminder app |
| Stopwatch | No | Yes | Polar RS800CX has a stopwatch |
| Music Playback | No | No | Both don't have music playback |
| Reports | Activity, Sleep | Activity | |
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 | No | Both don't have call control |
| Camera Control | No | No | Both don't have camera control |
| Find Phone | No | No | Both don't have a find phone feature |
Battery |
| Duration | 5 days | 365 days | Polar RS800CX battery life is about 73.0 times longer |
| Battery Type | Rechargeable Battery | Replaceable Cell Battery | |
Physical Specs |
| Weather Resistance | Yes | Yes | |
| Waterproof | Yes | No | |
| IP Rating | 5 ATM | 5 ATM | |
| Weight | 24 grams | n/a | |
User Interface |
| Display | LED Lights | Yes | |
| Display Size | n/a | 1,3 inches | |
| Screen Resolution |
n/a
|
n/a
| |
| Color Display | No | No | |
| Touch Screen | No | No | |
Compatibility |
| Android | Yes | No | Fitbit Flex 2 is compatibles with Android phones and tablets |
| iOS | Yes | No | Fitbit Flex 2 can connect with iPhones or iPads |
| OS X/Mac | No | Yes | Polar RS800CX compatibles with MacBooks and iMacs |
| Windows Phone | Yes | No | Fitbit Flex 2 compatibles with a range of 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 | No | No | Both don't have social features |
Connectivity |
| Bluetooth | Yes | No | Only Fitbit Flex 2 has a built-in Bluetooth connection option |
| 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 | |
