In depth comparison and review of Fitbit Surge and Amazfit GTS 4. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.
| GENERAL | Fitbit Surge | Amazfit GTS 4 |
|---|
| 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 | Wrist | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | 34 mm | 36.5 mm |
| Height | - | 42.7 mm |
| Lenght | 160 mm - 200 mm | - |
| Depth | - | 9.9 mm |
| Weight | - | 27 g |
| Body Material | - | Stainless steel, aluminium alloy frame |
| Protection | Waterproof | Water-resistant |
| Colours | Black | Blue | Tangerine | - |
| Clock Display | Yes | Yes |
| FEATURES | Fitbit Surge | Amazfit GTS 4 |
|---|
| Sensors | Ambient light sensor, 3-axis gyro sensor, digital compass, altimeter, heart rate, 3-axis accelerometer | Accelerometer, ambient light sensor, geomagnetic sensor, barometric altimeter, gyroscope, BioTracker PPG 4.0 biometric sensor |
|---|---|---|
| Tracking Data | Distance, time, calories burned, activity, sleep activity, heart rate, steps taken, floors climbed | Time, calories burned, activity, sleep activity, heart rate, steps taken, blood oxygen saturation, sleep stages, stress level, menstrual cycle, personal activity intelligence (PAI), recovery time, training load, sleep quality score, nap, sleep breathing quality |
| Modes | - | 154 sports modes |
| Goal Setting | - | Yes |
| Features | Music remote handling | Strength training guidance, camera remote control, find phone function, answering a call, VO2 max, making a call, Find my Device, breathing training function, store & play music, sunrise/sunset times, auto pause, auto lap, realtime location tracking, music playback control, weather information, instant message reply, PeakBeats workout status algorithm, ExerSense algorithm, Dual-band navigation, linear motor, Virtual Pacer, track run mode, smart trajectory correction, route file import |
| Notifications | Missed calls, SMS | SMS, incoming calls, applications, high and low heart rate, low blood-oxygen, high stress level |
| Vibrating Alert | Yes | Yes |
| Feedback Type | - | Audio alert, vibration alert, visual interface |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| IoT Voice Controlled | - | Direct |
| CONNECTIVITY | Fitbit Surge | Amazfit GTS 4 |
|---|
| Wireless Interface | Bluetooth 4.0 | Wi-Fi, Bluetooth 5.0 |
|---|---|---|
| Bluetooth Profiles | Audio/Video Remote Control Profile (AVRCP) | - |
| DISPLAY | Fitbit Surge | Amazfit GTS 4 |
|---|
| Type | LCD - monochrome | AMOLED - colour |
|---|---|---|
| Resolution | - | 390 x 450 pixels |
| Screen Size | - | 1.75" |
| Dimensions (WxH) | 20.88 mm x 24.36 mm | - |
| Pixel Density | - | 341 ppi |
| Screen Protection | - | Tempered glass |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Fitbit Surge | Amazfit GTS 4 |
|---|
| Type | Touch sensitive screen | Touch sensitive screen, push button |
|---|
| CASE | Fitbit Surge | Amazfit GTS 4 |
|---|
| Case Shape | - | Rectangular |
|---|---|---|
| Case Details | - | Aluminium alloy |
| BAND | Fitbit Surge | Amazfit GTS 4 |
|---|
| Band Type | - | Strap |
|---|---|---|
| Band Size | XL | - |
| Band Width | - | 20 mm |
| Fits Wrist with Circumference | 198-226 mm | 140-200 mm |
| Changeable | - | Yes |
| Clasp Type | - | Pin buckle |
| Band Material | - | Fluoroelastomer |
| Band Colour | - | Infinite black | Misty white | Rosebud pink |
| STORAGE | Fitbit Surge | Amazfit GTS 4 |
|---|
| User Memory | - | 2.3 GB |
|---|
| BATTERY | Fitbit Surge | Amazfit GTS 4 |
|---|
| Technology | Lithium polymer | - |
|---|---|---|
| Capacity | - | 300 mAh |
| Battery Life | 168 hours | - |
| Battery Life Details | - | Typical usage - up to 8 days Battery Saver Watch Mode - up to 16 days Clock - up to 30 days Heavy usage - up to 4 days Accurate mode (with GPS) - up to 16 hours GPS mode - up to 28 hours Power saving mode (with GPS) - up to 33 hours |
| Rechargeable Battery | - | Yes |
| Recharge Time | 2 hour(s) | 2 hour(s) |
| MISCELLANEOUS | Fitbit Surge | Amazfit GTS 4 |
|---|
| Included Accessories | USB charging cable, wireless sync dongle | Magnetic charging cable |
|---|---|---|
| Preloaded Software | Clock, Silent alarm, Track Log, Caller Name ID | To Do List, Games, Stopwatch, Calendar, World clock, Alarm Clock, Reminders, Timer, Compass, Countdown timer |
| Compliant Standards | Directive 1999/5/EC, FCC Part 15, R&TTE, Nordic Ecolabel, EN60950-1:2006 + A11:2009 + A1:2010 + A12:2011 | - |
| Max Depth of Water Resistance | - | 50 m |
| Max Operating Temperature | 45 °C | 45 °C |
| Min Operating Temperature | -20 °C | 0 °C |
| Warranty | - | 1-year warranty |
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