Side by side comparison and review of Fitbit Ionic and Amazfit GTS 3. Compare design, displays, functions, batteries and other key specifications and features to simplify the choice of your perfect smartwatch. Our goal is to make it easier for you to decide on the watch that will best meet your expectations by revealing the main differences between the products.
| GENERAL | Fitbit Ionic | Amazfit GTS 3 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | - | Zepp OS |
| Supported Host Device OS | iOS, Android, Windows Phone | iOS 12 or later, Android 7.0 (Nougat) or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Width | 38.6 mm | - |
| Height | 12.4 mm | - |
| Lenght | 256.5 mm | - |
| Depth | 12.4 mm | - |
| Weight | 50 g | - |
| Body Details | - | Case only: 24.4 g |
| Body Material | Aerospace-grade aluminium | Aluminium alloy |
| Protection | Water-resistant | Water-resistant |
| Colours | Charcoal, smoke grey | Burnt orange, slate blue | Blue grey, silver grey | - |
| Clock Display | - | Yes |
| FEATURES | Fitbit Ionic | Amazfit GTS 3 |
|---|
| Sensors | Accelerometer, altimeter, heart rate | Accelerometer, ambient light sensor, gyro sensor, geomagnetic sensor, barometric altimeter, temperature, BioTracker PPG 3.0 biometric sensor |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, sleep activity, heart rate, steps taken, floors climbed, pace, sleep stages, swim laps, active time | Distance, calories burned, sleep activity, heart rate, steps taken, blood oxygen saturation, stress level |
| Goal Setting | Yes | Yes |
| Features | PurePulse heart rate technology, automatic exercise recognition, SmartTrack | Camera remote control, find phone function, automatic exercise recognition, weather information, PAI Health Assessment System |
| Notifications | Missed calls, calendar, SMS, social apps | Calendar |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Vibration alert, visual interface |
| Navigation (GPS) | - | GPS/GLONASS/Galileo/BeiDou/QZSS receiver |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa |
| CONNECTIVITY | Fitbit Ionic | Amazfit GTS 3 |
|---|
| Wireless Interface | Bluetooth, IEEE 802.11b/g/n, NFC | Bluetooth 5.1 |
|---|
| DISPLAY | Fitbit Ionic | Amazfit GTS 3 |
|---|
| Type | LCD - colour | AMOLED - colour |
|---|---|---|
| Resolution | - | 390 x 450 pixels |
| Screen Size | - | 1.75" |
| Pixel Density | - | 341 ppi |
| Screen Protection | Corning Gorilla Glass 3 (scratch resistant glass) | Tempered glass |
| INPUT DEVICE | Fitbit Ionic | Amazfit GTS 3 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen |
|---|
| CASE | Fitbit Ionic | Amazfit GTS 3 |
|---|
| Case Shape | - | Rectangular |
|---|---|---|
| Case Details | Silver grey aluminium | - |
| Crown Type | - | Classic crown |
| BAND | Fitbit Ionic | Amazfit GTS 3 |
|---|
| Band Type | Sport band | Strap |
|---|---|---|
| Band Width | - | 20 mm |
| Fits Wrist with Circumference | - | 155-218 mm |
| Changeable | - | Yes |
| Clasp Type | - | Buckle |
| Band Material | - | Silicone |
| Band Colour | Ink blue/ice grey | Graphite black | Ivory white | Pink earth |
| BATTERY | Fitbit Ionic | Amazfit GTS 3 |
|---|
| Capacity | - | 250 mAh |
|---|---|---|
| Battery Life | 4 day(s) | - |
| Battery Life Details | - | Battery safe mode - up to 20 days Heavy usage - up to 6 days Typical usage - up to 12 days GPS mode - up to 20 hour(s) |
| Rechargeable Battery | - | Yes |
| Recharge Time | - | 2 hour(s) |
| MISCELLANEOUS | Fitbit Ionic | Amazfit GTS 3 |
|---|
| Included Accessories | Charging cable, 2 wristbands (S+L) | Magnetic charging stand |
|---|---|---|
| Preloaded Software | - | Zepp App |
| Max Depth of Water Resistance | 50 m | 50 m |
| Warranty | 1-year warranty | 2-year warranty |
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