Basic Info |
| Wear Type | Earphones | Wristband | |
| Price | | | |
| Ratings | | | |
Activity & Fitness |
| Activity | Yes | Yes | Both track daily activity |
| Calories | Yes | Yes | Both track calories burned |
| Sleep | No | No | Both don't have sleep tracking |
| Heart Rate / Pulse | Yes | Yes | Both measure heart rate |
| VO2 Max | Yes | No | KuaiFit Headphones shows the maximum volume of oxygen you can consume per minute |
| Distance | Yes | Yes | Both track your running/walking distance |
| Steps | No | Yes | Polar FT80 tracks and measures your steps |
| Pace | Yes | No | |
| Speed | Yes | No | |
| Stairs / Floors | No | No | Both don't have elevation feature |
| Exercise Tagging | No | Yes | Only Polar FT80 provides exercise tagging |
| Smart Coach | Yes | Yes | Both can help with smart coaching |
| Goal Setting | Yes | Yes | Both can help with your goals setting |
| Inactivity Alert | No | n/a | Both don't have inactivity alerts |
Additional Features |
| GPS | No | Yes | Polar FT80 has GPS support |
| Compass | No | n/a | Both don't have a compass |
| Watch / Clock | No | Yes | Only Polar FT80 has a watch |
| Alarm Clock | No | Yes | Polar FT80 has a alarm clock |
| Reminders | No | Yes | Polar FT80 has a reminder option |
| Stopwatch | No | Yes | Polar FT80 has a stopwatch |
| Music Playback | Yes | n/a | Only KuaiFit Headphones offers phone-free music |
| Reports | Activity | Activity | |
Smartphone Remote Features |
| Notifications | Yes | No | If you get a phone notification, KuaiFit Headphones make an alert for you |
| Caller ID | Yes | No | KuaiFit Headphones can notify you who is calling |
| Music Control | Yes | No | KuaiFit Headphones allows control smartphone music player |
| Call Control | Yes | n/a | KuaiFit Headphones allows you control phone calls |
| 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 hours | 243 days | |
| Battery Type | Rechargeable Battery | Replaceable Cell Battery | |
Physical Specs |
| Weather Resistance | Yes | Yes | |
| Waterproof | No | Yes | |
| IP Rating | n/a | n/a | |
| Weight | n/a | n/a | |
User Interface |
| Display | No | Yes | |
| Display Size | | n/a | |
| Screen Resolution | |
n/a
| |
| Color Display | No | n/a | |
| Touch Screen | No | n/a | |
Compatibility |
| Android | Yes | No | KuaiFit Headphones is compatibles with Android phones and tablets |
| iOS | Yes | No | KuaiFit Headphones can connect with iPhones or iPads |
| OS X/Mac | Yes | Yes | Both compatible MAC OS X laptops and PCs |
| Windows Phone | No | No | Both don't compatible with Windows Phone devices |
| Windows | Yes | Yes | Both can help find your smartphone |
| Web Portal | Yes | Yes | Both have access to online web portal |
| Social Features | No | n/a | Both don't have social features |
Connectivity |
| Bluetooth | Yes | No | Only KuaiFit Headphones 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+ | Yes | No | Only KuaiFit Headphones has ANT+ wireless technology |
| Buy on Amazon | Buy on Amazon | |
