Basic Info |
| Wear Type | Wristband | Wristband | |
| Price | $18998 | | |
| Ratings | | | |
Activity & Fitness |
| Activity | Yes | No | Polar RS300X tracks your activity |
| Calories | Yes | Yes | Both track calories burned |
| Sleep | No | No | Both don't monitor sleep pattern |
| Heart Rate / Pulse | Yes | Yes | Both have heart rate tracking |
| External HR Monitor | No | Yes | |
| Distance | Yes | No | Polar RS300X provides running or walking distance tracking |
| Steps | Yes | No | Polar RS300X counts your steps |
| Stairs / Floors | No | No | Both don't track climbing stairs or floors |
| Exercise Tagging | Yes | No | Only Polar RS300X provides exercise tagging |
| Smart Coach | Yes | Yes | Both can help with smart coaching |
| Goal Setting | Yes | No | Set and keep your own daily or weekly goals with Polar RS300X |
| Inactivity Alert | No | No | Both don't have inactivity alerts |
Additional Features |
| GPS | Yes | No | Polar RS300X has GPS support |
| Compass | No | No | Both don't have a compass |
| Watch / Clock | Yes | Yes | Both have watch |
| Alarm Clock | Yes | Yes | Both have alarm clock |
| Reminders | No | Yes | Polar RS400 has a reminder option |
| Stopwatch | No | Yes | Polar RS400 has a stopwatch |
| Music Playback | No | No | Both don't have music playback |
| Reports | Activity | | |
Smartphone Remote Features |
| Notifications | No | No | Both don't have phone notifications |
| 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 | 365 days | n/a | |
| Battery Type | Replaceable Cell Battery | Rechargeable Battery | |
Physical Specs |
| Weather Resistance | Yes | Yes | |
| Waterproof | Yes | No | |
| IP Rating | n/a | 5 ATM | |
| Weight | 181 grams | 45 grams | Polar RS400 is 136.0 g lighter |
User Interface |
| Display | Yes | LCD Screen | |
| Display Size | n/a | n/a | |
| Screen Resolution |
n/a
|
n/a
| |
| Color Display | No | No | |
| Touch Screen | No | No | |
Compatibility |
| Android | No | No | Both don't compatible with Android devices |
| iOS | No | No | Both don't compatible iOS devices |
| 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 | No | Both don't have social features |
Connectivity |
| Bluetooth | No | No | Both don't have Bluetooth |
| 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 | |
