| Basic Info | 
| Wear Type | Wristband | Wristband |  | 
| Price | $20054 | $48249 | Fitbit Ionic is 2.4x cheaper | 
| Ratings |  |  |  | 
| Activity & Fitness | 
| Activity | Yes | Yes | Both track daily activity | 
| Calories | Yes | Yes | Both track calories burned | 
| Sleep | Yes | Yes | Both can track your sleep | 
| Heart Rate / Pulse | Yes | Yes | Both have heart rate tracking | 
| VO2 Max | No | Yes | Garmin Fenix 5S shows the maximum volume of oxygen you can consume per minute | 
| Distance | Yes | Yes | Both track your stride length | 
| Steps | Yes | Yes | Both track how many steps you take | 
| Speed | No | Yes |  | 
| Stairs / Floors | Yes | Yes | Both track elevation, climbing stairs or floors | 
| Exercise Tagging | Yes | Yes | Both have exercise tagging feature | 
| Smart Coach | Yes | No | Fitbit Ionic provides real time fitness coaching | 
| Goal Setting | Yes | Yes | Both can help with your goals setting | 
| Inactivity Alert | No | Yes | Garmin Fenix 5S helps you stay active with inactivity alert | 
| Additional Features | 
| GPS | Yes | Yes | Both have integrated GPS modules | 
| Navigation | Yes | No | Fitbit Ionic has onboard GPS navigation | 
| Compass | No | Yes | Garmin Fenix 5S has a compass | 
| Watch / Clock | Yes | Yes | Both have watch | 
| Alarm Clock | Yes | Yes | Both have alarm clock | 
| Reminders | Yes | Yes | Both have reminder app | 
| Stopwatch | No | Yes | Garmin Fenix 5S has a stopwatch | 
| Music Playback | Yes | No | Only Fitbit Ionic offers phone-free music | 
| Weather | No | Yes | *Weather forecast | 
| 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 | Yes | Yes | Both allow control smartphone music player | 
| Call Control | Yes | No | Fitbit Ionic allows you control phone calls | 
| Camera Control | No | No | Both don't have camera control | 
| Find Phone | No | Yes | Garmin Fenix 5S allows you to locate your phone | 
| Battery | 
| Duration | 5 days | 9 days | Garmin Fenix 5S battery life is about 1.8 times  longer | 
| Battery Type | Rechargeable Battery | Rechargeable Battery |  | 
| Physical Specs | 
| Weather Resistance | Yes | Yes |  | 
| Waterproof | No | Yes |  | 
| IP Rating | 5 ATM | 10 ATM |  | 
| Weight | n/a | 67 grams |  | 
| User Interface | 
| Display | LCD Screen | LCD Screen |  | 
| Display Size | 1,42 inches | 1,1 inches |  | 
| Screen Resolution | 348 x 250 pixels | 218 x 218 pixels |  | 
| Color Display | Yes | Yes |  | 
| Touch Screen | Yes | Yes |  | 
| Sapphire glass | No | Yes | *Scratch resistant sapphire crystal glass | 
| Compatibility | 
| Android | Yes | Yes | Both compatible with Android devices | 
| iOS | Yes | Yes | Both compatible iOS devices | 
| OS X/Mac | Yes | No | Fitbit Ionic compatibles with MacBooks and iMacs | 
| Windows Phone | Yes | No | Fitbit Ionic compatibles with a range of Windows Phone devices | 
| Windows | Yes | No | Fitbit Ionic allows you to locate your phone | 
| Web Portal | No | Yes | Garmin Fenix 5S allows you upload and view data on the online portal | 
| Social Features | No | Yes | You can integrate Garmin Fenix 5S with social networks and share information | 
| Connectivity | 
| Bluetooth | Yes | Yes | Both have Bluetooth data transfer technology | 
| Wi-Fi | Yes | Yes | Both have built-in Wi-Fi wireless connection | 
| NFC | Yes | No | Only Fitbit Ionic has NFC (Near Field Communication) | 
| ANT+ | No | Yes | Only Garmin Fenix 5S has ANT+ wireless technology | 
|  | Buy on Amazon | Buy on Amazon |  |