Basic Info |
| Wear Type | Wristband | Wristband | |
| Price | $12100 | $10399 | Polar A370 is 120% cheaper |
| Ratings | | | |
Activity & Fitness |
| Activity | Yes | Yes | Both track daily activity |
| Calories | Yes | Yes | Both track calories burned |
| Sleep | Yes | Yes | Both track sleep pattern |
| Heart Rate / Pulse | Yes | Yes | Both have heart rate tracking |
| VO2 Max | Yes | No | Fitbit Charge 3 tracks the maximum consumption of oxygen per minute |
| Distance | Yes | Yes | Both track your stride length |
| Steps | Yes | Yes | Both track how many steps you take |
| Stairs / Floors | Yes | No | Fitbit Charge 3 counts your climbing stairs or floors |
| Exercise Tagging | Yes | Yes | Both have exercise tagging feature |
| Smart Coach | No | Yes | Polar A370 provides real time fitness coaching |
| Goal Setting | Yes | Yes | Both can help with your goals setting |
| Inactivity Alert | Yes | n/a | Fitbit Charge 3 helps you stay active with inactivity alert |
Additional Features |
| GPS | No | Yes | Polar A370 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 Charge 3 has a reminder option |
| Stopwatch | No | Yes | Polar A370 has a stopwatch |
| Music Playback | No | n/a | Both don't have music playback |
| Reports | Activity, Sleep | Activity, Sleep | |
Smartphone Remote Features |
| Notifications | Yes | Yes | Both show smartphone notifications |
| Caller ID | Yes | Yes | Both 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 | 7 days | 4 days | Fitbit Charge 3 battery life is about 1.8 times longer |
| Battery Type | Rechargeable Battery | Rechargeable Battery | |
Physical Specs |
| Weather Resistance | Yes | Yes | |
| Waterproof | Yes | Yes | |
| IP Rating | 5ATM | n/a | |
| Weight | 30 grams | 37 grams | Fitbit Charge 3 is 7.0 g lighter |
User Interface |
| Display | OLED Screen | Yes | |
| Display Size | n/a | n/a | |
| Screen Resolution |
n/a
|
n/a
| |
| Color Display | No | n/a | |
| Touch Screen | Yes | n/a | |
Compatibility |
| Android | Yes | n/a | Fitbit Charge 3 is compatibles with Android phones and tablets |
| iOS | Yes | Yes | Both compatible iOS devices |
| OS X/Mac | No | No | Both don't compatible MAC OS X devices |
| Windows Phone | No | Yes | Polar A370 compatibles with a range of Windows Phone devices |
| Windows | No | No | Both don't have a find phone feature |
| Web Portal | No | Yes | Polar A370 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 | Yes | n/a | Select Fitbit Charge 3 if you need a built-in Wi-Fi connectivity |
| NFC | Yes | n/a | Only Fitbit Charge 3 has NFC (Near Field Communication) |
| ANT+ | No | n/a | Both don't provide ANT+ wireless technology |
| Buy on Amazon | Buy on Amazon | |
