Basic Info |
| Wear Type | Wristband | Wristband | |
| Price | $10399 | $14999 | Polar A370 is 140% cheaper |
| Ratings | | | |
Activity & Fitness |
| Activity | Yes | Yes | Both track daily activity |
| Calories | Yes | Yes | Both track calories burned |
| Sleep | Yes | No | Polar A370 monitors your sleep pattern |
| Heart Rate / Pulse | Yes | Yes | Both measure heart rate |
| External HR Monitor | No | Yes | |
| Distance | Yes | Yes | Both track your running/walking distance |
| Steps | Yes | Yes | Both track and count your steps |
| Stairs / Floors | No | No | Both don't have elevation feature |
| Exercise Tagging | Yes | Yes | Both have exercise tagging feature |
| Smart Coach | Yes | No | Polar A370 provides real time fitness coaching |
| Goal Setting | Yes | Yes | Both can help with your goals setting |
| Inactivity Alert | n/a | No | Both don't have inactivity alerts |
Additional Features |
| GPS | Yes | Yes | Both have integrated GPS modules |
| 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 | No | No | Both don't have reminder |
| Stopwatch | Yes | No | Polar A370 has a stopwatch |
| Music Playback | n/a | No | Both don't have music playback |
| Reports | Activity, Sleep | Activity | |
Smartphone Remote Features |
| Notifications | Yes | No | If you get a phone notification, Polar A370 make an alert for you |
| Caller ID | Yes | No | Polar A370 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 | 4 days | 240 days | Polar RCX3 battery life is about 60.0 times longer |
| Battery Type | Rechargeable Battery | Replaceable Cell Battery | |
Physical Specs |
| Weather Resistance | Yes | Yes | |
| Waterproof | Yes | No | |
| IP Rating | n/a | 3 ATM | |
| Weight | 37 grams | n/a | |
User Interface |
| Display | Yes | Yes | |
| Display Size | n/a | n/a | |
| Screen Resolution |
n/a
|
n/a
| |
| Color Display | n/a | No | |
| Touch Screen | n/a | No | |
Compatibility |
| Android | n/a | No | Both don't compatible with Android devices |
| iOS | Yes | No | Polar A370 can connect with iPhones or iPads |
| OS X/Mac | No | Yes | Polar RCX3 compatibles with MacBooks and iMacs |
| Windows Phone | Yes | No | Polar A370 compatibles with a range of Windows Phone devices |
| Windows | No | Yes | Polar RCX3 allows you to locate your phone |
| Web Portal | Yes | Yes | Both have access to online web portal |
| Social Features | n/a | No | Both don't have social features |
Connectivity |
| Bluetooth | Yes | No | Only Polar A370 has a built-in Bluetooth connection option |
| Wi-Fi | n/a | No | Both don't have Wi-Fi connection |
| NFC | n/a | No | Both don't have NFC connectivity |
| ANT+ | n/a | No | Both don't provide ANT+ wireless technology |
| Buy on Amazon | Buy on Amazon | |
