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Xiaomi Redmi Watch (WT02) vs Sony Xperia Z Ultra (3G)

Side by side comparison between Xiaomi Redmi Watch vs Sony Xperia Z Ultra devices, differences, pros, cons with full specifications. What's the better?

Compare Sony Xperia Z Ultra XXiaomi Redmi Watch (WT02)07Points
Xiaomi Redmi Watch (WT02)




32bit Single


(Non removable)

23PointsSony Xperia Z Ultra (3G)Compare Xiaomi Redmi Watch X
Sony Xperia Z Ultra (3G)





32bit Quad


(Non removable)

What's the better device? Sony Xperia Z Ultra (3G)

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!

Redmi Watch (WT02)7 Advantages Xiaomi Redmi Watch (WT02)vsXperia Z Ultra (3G)23 Advantages Sony Xperia Z Ultra (3G)
+22 grams (.77 ounces)9 times
vs212 grams (7.42 ounces)
+TFT IPS LCDAdvantage
TFT IPS LCD display is brighter and more vivid
Sensors help you use the device
vsNot supported
+Heart rateAdvantage
Sensors help you use the device
vsNot supported
Sensors help you use the device
vsNot supported
+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
vs4.0 + A2DP
+50 meters waterproofAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsWaterproof (IP?)
Not supportedvs+Until 64GB microSD, microSDXCAdvantage
More external storage for files using memory cards
11.9 millimeters (0.47 inches)vs+6.5 millimeters (0.26 inches)83%
260 thousandvs+16 million61 times
More colors on the screen is better quality images and videos
320x320 pixelsvs+1080x1920 pixels19 times
Higher resolution screen
323 PPIvs+344 PPI7%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
1.4"vs+6.4"4 times
Larger screen
Not supportedvs+(back) 8MPAdvantage
With a camera you can take pictures anywhere
Not supportedvs+Full HD (1920x1080)Advantage
More image quality for recording videos with the primary camera
10 appsvs+2500000 apps (Google Play Store)249999 times
More apps available to download and use
Not supportedvs+3G+ HSPA+Advantage
The 3G+ HSPA+ network is newer and faster
(Not supported) vs+(3G+ HSPA+) 42 MbpsAdvantage
Faster for surfing the internet and download files
Not supportedvs+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supportedvs+Proximity sensorAdvantage
Sensors help you use the device
Not supportedvs+Ambient Light sensorAdvantage
Sensors help you use the device
230 mAhvs+3050 mAh12 times
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supportedvs+SpeakerphoneAdvantage
Speakerphone is useful when you are driving and on other occasions
Not supportedvs+Video callingAdvantage
The video calling allows to make calls with voice and video
Not supportedvs+Active noise cancellationAdvantage
Noise-canceling microphone allows better call quality
Not supportedvs+FM (RDS)Advantage
The radio lets you listen to your songs and sports in general
Not supportedvs+802.11 a/b/g/n/ac (2.4Ghz, 5Ghz)Advantage
WiFi 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) is newer and faster
Not supportedvs+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
Not supportedvs+MicroUSB 2.0Advantage
Newer and faster USB version for transferring photos, mp3 or data.
Not supportedvs+Scratch-resistant glassAdvantage
Protection against scratches on the screen lets you carry your phone with your keys

11 Common items in both devices
Not supported / 16GB (11GB available)
Li-Ion: Lithium-Ion (Non removable)
+4 specs and more in the table below

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

Highlight differencesClear highlight
Physical featuresXiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
ModelRedmi Watch (WT02)Xperia Z Ultra (3G)
Other model namesRedmi Watch REDMIWT02, REDMI-WT02 (GPS)Sony Xperia Z Ultra C6802 3G XL39h HSPA+, Sony Togari
Country or region availableIndia
feature not registered
Release dateMay, 2021July, 2013
Depth11.9 millimeters (0.47 inches)6.5 millimeters (0.26 inches)
Size (width x height)35 x 41 millimeters (1.38 x 1.61 in)92.2 x 179.4 millimeters (3.63 x 7.06 in)
Weight22 grams (.77 ounces)212 grams (7.42 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsPlastic body, glass frontfeature not registered
Protection against water and others50 meters waterproofWaterproof (IP?)
System (OS)Xiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
Operating systemProprietary OSAndroid 4.2.2 Jelly Bean
Firmware updatefeature not registeredAndroid 4.4.4 KitKat
HardwareXiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
Chipset32bit32bit - Qualcomm MSM8274
CPU processorSingle-Core2.2Ghz Quad-Core Krait 400
GPU graphical controller3D GPUQualcomm Adreno 330
RAM memoryfeature not registered2GB LPDDR3
Internal storageNot supported16GB (11GB available)
External storageNot supportedUntil 64GB microSD, microSDXC
(dedicated slot)
DisplayXiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
Screen size1.4" inches6.4" inches
Screen-to-body ratio~44.1% (screen-to-body ratio)~68.3% (screen-to-body ratio)
Display resolution320x320 pixels (1:1)1080x1920 pixels
TouchscreenCapacitive MultitouchCapacitive Multitouch 10-points
Pixel density (dot pitch)323 PPI344 PPI
Colors260 thousand16 million
Scratch-resistant glassNot supportedScratch-resistant glass
Display features350 nitsfeature not registered
Mobile networksXiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
Dual-SIMNot supportedNot supported
SIM cardNot supported1 slot (Single-SIM)
micro-SIM (3FF)
Maximum download/uploadfeature not registered42/5.76 Mbps
Network technologyfeature not registered2G, 3G
Frequency, bandsExpand band detailsCollapse details
GSM Mhz bandNot supportedQuad-Band 850/900/1800/1900
Primary 2G networkNot supportedGSM 850/900/1800/1900
Primary 3G networkNot supportedUMTS 850/900/1700/1900/2100
Primary 4G networkNot supportedNot supported
Primary 5G networkNot supportedNot supported
Primary data networkNot supportedGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
Secondary 2G networkNot supportedNot supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkNot supportedNot supported
CallingXiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
MessagingSMS, E-mailSMS (T9), MMS, E-mail, Push mail
SpeakerphoneNot supportedSupported
Video callingNot supportedSupported
Call controlNot supportedVoice dialing, Voice recorder
CameraXiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
Back camera (main camera)Not supported8 megapixels
Main camera resolutionNot supported3264x2448 pixels
Video recording (primary)Not supportedFull HD (1920x1080) 30 fps
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 supportedAutofocus
Touch focusNot supportedSupported
Image stabilizationNot supportedfeature not registered
ZoomNot supportedOnly digital zoom
Face/smile detectionNot supportedFace detection
BSI sensorNot supportedSupported
HDRNot supportedHDR photo/video only main camera
2ª cameraXiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
Front camera (secondary)Not supported2.1 megapixels
Front camera resolutionNot supported1920x1080 pixels
Video recording (secondary)Not supportedFull HD (1920x1080)
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
MultimediaXiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
RadioNot supportedFM (RDS)
TVNot supportedNot supported
Video formatsfeature not registeredMP4, DivX, XviD, H.264, H.263, WMV
Audio formatsMP3, eAAC+MP3, WAV, WMA, eAAC+, FLAC
ConnectivityXiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
USBNot supportedMicroUSB 2.0
TV outputNot supportedMicro-B USB MHL
Audio outputNot supported3.5mm jack
Bluetooth5.0 + A2DP/LE4.0 + A2DP
WiFiNot supported802.11 a/b/g/n/ac (2.4Ghz, 5Ghz)
DLNANot supportedSupported
Infrared portNot supportedNot supported
Other functionsXiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
Active noise cancellationNot supportedSupported
Vibrating alertSupportedSupported
Ringtonesfeature not registeredPolyphonic and customized
Heart rate
Proximity sensor
Ambient Light sensor
Other features- Colors: Black, Blue, Ivory
- Strap/bands: Black, Blue, Ivory, Olive
- 2.5D curved display
- Android/iOS compatible
- Watch faces (+200)
- Colors: Black, White, Purple
- Sony Mobile BRAVIA Engine 3
- X-Reality triluminos display
- USB On-The-Go 1.3
- Panorama photo
- 3D Surround Sound
- WiFi direct
- WiFi hotspot
- Java framework
Power supplyXiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
BatteryLi-Ion: Lithium-Ion (Non removable)Li-Ion: Lithium-Ion (Non removable)
Battery capacity230 mAh3050 mAh
Charger, watts Standard charging
Magnetic charging (dock)
Standard charging
Talk time autonomyfeature not registered960 minutes | 16 hours | 0.7 day
Standby14400 minutes | 240 hours | 10 days49200 minutes | 820 hours | 34.2 days
Radiation rateXiaomi Redmi Watch (WT02)Sony Xperia Z Ultra (3G)
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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