In depth comparison and review of Pebble 2 + Heart Rate 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 | Pebble 2 + Heart Rate | Amazfit GTS 4 |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Pebble OS | Zepp OS |
| Supported Host Device OS | Android 4.3 (Jelly Bean) or later, iOS 8.0 or later | iOS 12 or later, Android 7.0 (Nougat) or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | Microphone | Microphone |
| Audio Output | - | Speaker |
| Width | - | 36.5 mm |
| Height | - | 42.7 mm |
| Depth | 9.8 mm | 9.9 mm |
| Weight | - | 27 g |
| Body Material | Polycarbonate | Stainless steel, aluminium alloy frame |
| Protection | Waterproof | Water-resistant |
| Colours | White | Charcoal/flame | Charcoal/lime | White aqua | - |
| Clock Display | Yes | Yes |
| FEATURES | Pebble 2 + Heart Rate | Amazfit GTS 4 |
|---|
| Sensors | Ambient light sensor, heart rate, 3-axis accelerometer | Accelerometer, ambient light sensor, geomagnetic sensor, barometric altimeter, gyroscope, BioTracker PPG 4.0 biometric sensor |
|---|---|---|
| Tracking Data | Time, calories burned, activity, sleep activity, heart rate, steps taken | 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, call alerts, app alerts | 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 | 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 | Pebble 2 + Heart Rate | Amazfit GTS 4 |
|---|
| Wireless Interface | Bluetooth 4.0 | Wi-Fi, Bluetooth 5.0 |
|---|
| DISPLAY | Pebble 2 + Heart Rate | Amazfit GTS 4 |
|---|
| Type | E Ink - monochrome | AMOLED - colour |
|---|---|---|
| Resolution | - | 390 x 450 pixels |
| Screen Size | - | 1.75" |
| Pixel Density | - | 341 ppi |
| Screen Protection | Scratch-resistant glass | Tempered glass |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Pebble 2 + Heart Rate | Amazfit GTS 4 |
|---|
| Type | - | Touch sensitive screen, push button |
|---|
| CASE | Pebble 2 + Heart Rate | Amazfit GTS 4 |
|---|
| Case Shape | - | Rectangular |
|---|---|---|
| Case Details | Black | Black/flame | Aluminium alloy |
| BAND | Pebble 2 + Heart Rate | Amazfit GTS 4 |
|---|
| Band Type | Band | Strap |
|---|---|---|
| Band Width | 22 mm | 20 mm |
| Fits Wrist with Circumference | - | 140-200 mm |
| Changeable | - | Yes |
| Clasp Type | - | Pin buckle |
| Band Material | Silicone | Fluoroelastomer |
| Band Colour | Black | White | Infinite black | Misty white | Rosebud pink |
| STORAGE | Pebble 2 + Heart Rate | Amazfit GTS 4 |
|---|
| User Memory | - | 2.3 GB |
|---|
| BATTERY | Pebble 2 + Heart Rate | Amazfit GTS 4 |
|---|
| Capacity | - | 300 mAh |
|---|---|---|
| Battery Life | 7 day(s) | - |
| 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) |
| MISCELLANEOUS | Pebble 2 + Heart Rate | Amazfit GTS 4 |
|---|
| Included Accessories | Magnetic charging cable | Magnetic charging cable |
|---|---|---|
| Preloaded Software | Silent alarm | To Do List, Games, Stopwatch, Calendar, World clock, Alarm Clock, Reminders, Timer, Compass, Countdown timer |
| Max Depth of Water Resistance | 30 m | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | 0 °C |
| Warranty | - | 1-year warranty |
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