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Otium Gear vs Xiaomi Amazfit T-Rex

Side by side comparison between Otium Gear vs Xiaomi Amazfit T-Rex smartwatches, differences, pros, cons and full specifications. What's the better?







16Points Xiaomi Amazfit T-Rex Compare Otium Gear X





(Non removable)

What's the better smartwatch? Xiaomi Amazfit T-Rex

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

Gear} 12 Advantages Otium Gear vs Amazfit T-Rex} 16 Advantages Xiaomi Amazfit T-Rex
+Until 8GB microSD, microSDHCAdvantage
More external storage for files using memory cards
vsNot supported
+50 grams (1.75 ounces)16%
vs58 grams (2.03 ounces)
+11.7 millimeters (0.46 inches)15%
vs13.5 millimeters (0.53 inches)
+Aluminum body, glass front, plastic backAdvantage
More resistant material
vsPlastic body, glass front
Larger screen
+(back) 1.3MPAdvantage
With a camera you can take pictures anywhere
vsNot supported
+HVGA (480x320)Advantage
More image quality for recording videos with the primary camera
vsNot supported
+2G EDGEAdvantage
The 2G EDGE network is newer and faster
vsNot supported
+(2G EDGE) 0.236 MbpsAdvantage
Faster for surfing the internet and download files
vs(Not supported)
+Li-Ion: Lithium-Ion (Removable)Advantage
Removable battery can be replaced easily
vsLiPo: Li-Ion polymer (Non removable)
The radio lets you listen to your songs and sports in general
vsNot supported
+Mini-USB 1.1 (Mini-B)Advantage
Newer and faster USB version for transferring photos, mp3 or data.
vsNot supported
128MBvs+512MB LPDDR33 times
More RAM memory. Typically more responsive and better for multitasking.
64MBvs+4GB (2GB available)31 times
More internal storage for applications and files
AMOLED display is brighter and more vivid
260 thousandvs+16 million61 times
More colors on the screen is better quality images and videos
240x240 pixelsvs+360x360 pixels125%
Higher resolution screen
226 PPIvs+392 PPI73%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
Better touch type. Multitouch allows to use more fingers at the same time.
Not supportedvs+Ambient Light sensorAdvantage
Sensors help you use the device
Not supportedvs+CompassAdvantage
Sensors help you use the device
Not supportedvs+Heart rateAdvantage
Sensors help you use the device
Not supportedvs+SpO2Advantage
Sensors help you use the device
380 mAhvs+390 mAh3%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supportedvs+A-GPS, GeoTagging, GLONASSAdvantage
It's harder to lose yourself in the city with GPS on your device
3.0 + A2DPvs+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
Not supportedvs+Gorilla Glass 3Advantage
Protection against scratches on the screen lets you carry your phone with your keys
Not supportedvs+5 ATMAdvantage
Protection against water allows you talk to your friends in the rain, for example

5 Common items in both devices
Proprietary OS
Not supported
+ specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences Clear highlight

📱 Model features

Otium GearAmazfit T-Rex
Change model  
ModelOtium GearAmazfit T-Rex
Other model namesOtium Gear smartwatch, Otium Gear US-008Mi Amazfit TRex
Country or region availableChina
(Global, International)
(Global, International)
Release date11/1/20141/9/2020, Announced: 1/1/2020
Depth11.7 millimeters (0.46 inches)13.5 millimeters (0.53 inches)
Size (width x height)39.88 x 43.43 millimeters (1.57 x 1.71 in)47.47 x 47.47 millimeters (1.87 x 1.87 in)
Weight50 grams (1.75 ounces)58 grams (2.03 ounces)
Build, materialsAluminum body, glass front, plastic backPlastic body, glass front
Protection against water and othersNot supported5 ATM: 50 meters waterproof

📲 Display

Otium GearAmazfit T-Rex
Screen size1.5" inches1.3" inches
Screen-to-body ratio~41.9% (screen-to-body ratio)~24.2% (screen-to-body ratio)
Display resolution240x240 pixels360x360 pixels
TouchscreenCapacitive Single touch 1-pointCapacitive Multitouch
Pixel density (dot pitch)226 PPI392 PPI
Colors260 thousand16 million
Scratch-resistant glassNot supportedGorilla Glass 3
Refresh ratefeature not registered60Hz
Display featuresfeature not registeredNot supported

🤖 Operating System

Otium GearAmazfit T-Rex
System versionProprietary OSProprietary OS
Firmware updatefeature not registeredfeature not registered
User Interfacefeature not registeredRTOS

⚙️ Processor

Otium GearAmazfit T-Rex
Chipset32bit: MediaTek MT6260A32bit
CPUSingle-core, 1 processor:
1x 533MHz ARM7EJ-S (Single-core)
Single-core, 1 processor:
GPU graphical controllerfeature not registeredfeature not registered
Performance (benchmark)feature not registeredfeature not registered

💽 Memory and storage

Otium GearAmazfit T-Rex
RAM memory128MB512MB LPDDR3
Internal storage64MB4GB (2GB available)
External storageUntil 8GB microSD, microSDHC
(dedicated slot)
Not supported

📶 Mobile networks

Otium GearAmazfit T-Rex
Dual-SIMNot supportedNot supported
SIM card1 slot (Single-SIM)
micro-SIM (3FF)
Not supported
Maximum Download / Upload0.236 Mbpsfeature not registered
Network technology2Gfeature not registered
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Not supported
Primary 2G networkGSM 850/900/1800/1900Not supported
Primary 3G networkNot supportedNot supported
Primary 4G networkNot supportedNot supported
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGENot supported
Secondary 2G networkNot supportedNot supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedNot supported

📷 Camera

Otium GearAmazfit T-Rex
Back camera (main camera)1.3 megapixelsNot supported
Main camera resolution1280x1024 pixelsNot supported
Video recording (primary)HVGA (480x320) 10 fpsNot supported
FlashNot supportedNot supported
Focal aperturefeature not registeredfeature not registered
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered
AutofocusNot supportedNot supported
Touch focusNot supportedNot supported
Image stabilizationNot supportedNot supported
ZoomOnly digital zoomNot supported
Face/smile detectionNot supportedNot supported
BSI sensorNot supportedNot supported
HDRNot supportedNot supported
Camera extrasfeature not registeredfeature not registered

📸 Front camera

Otium GearAmazfit T-Rex
Front camera (secondary)Not supportedNot supported
Front camera resolutionNot supportedNot supported
Video recording (secondary)Not supportedNot supported
Front flashNot supportedNot supported
Focal aperturefeature not registeredfeature not registered
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registeredfeature not registered
Pixel sizefeature not registeredfeature not registered

🔉 Sound and multimedia

Otium GearAmazfit T-Rex
LoudspeakerSupportedfeature not registered
Active noise cancellationNot supportedNot supported
RadioFMNot supported
TVNot supportedNot supported
Video formatsMP4, H.264, H.263feature not registered
Audio formatsMP3, WAV, eAAC+feature not registered

🔌 Connectivity

Otium GearAmazfit T-Rex
USBMini-USB 1.1 (Mini-B)Not supported
Audio outputNot supportedNot supported
TV outputNot supportedNot supported
Bluetooth3.0 + A2DP5.0 + A2DP/LE
WiFiNot supportedNot supported
DLNANot supportedNot supported
GPSNot supportedA-GPS, GeoTagging, GLONASS
NFCNot supportedNot supported
Infrared portNot supportedNot supported

🧭 Sensors

Otium GearAmazfit T-Rex
Ambient Light sensor
Heart rate
Vibrating alertSupportedSupported

🔋 Battery

Otium GearAmazfit T-Rex
Battery typeLi-Ion: Lithium-Ion (Removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity380 mAh390 mAh
Charger, wattsWired chargingWired charging
Inductive / wireless chargingfeature not registeredMagnetic charging (dock)
Talk time autonomy70 hours (2.9 days)20 hours
Standby80 hours (3.3 days)480 hours (20 days)

➕ Other features

Otium GearAmazfit T-Rex
Call controlVoice dialing, Voice recorderNot supported
MessagingSMS, E-mailSMS (T9), E-mail
Hands-free callingSupportedNot supported
Video callingNot supportedNot supported
RingtonesPolyphonicfeature not registered
Web browserNot supportedNot supported
AntennaInternal antennafeature not registered
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• Watch colors: Silver
• Watch strap colors: Black, White, Orange
• Screen Protector
• Android compatibility
• Colors: Black, Gray, Camouflage, Army green, Khaki
• Watch band: 22mm
• BioTracker PPG
• 14 sports mode
• AppZepp app
• Compatible with Android 5.0/iOS 10 and above

☢️ Radiation rate

Otium GearAmazfit T-Rex
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered

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