In depth comparison and review of HTC U Ultra and Xiaomi MI A2. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | HTC U Ultra | Xiaomi MI A2 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 145.99 mm | 158.7 mm | Xiaomi MI A2 has greater height than HTC U Ultra. |
| Width | 72.9 mm | 75.4 mm | Xiaomi MI A2 has greater width than HTC U Ultra. |
| Depth | 7.99 mm | 7.3 mm | Xiaomi MI A2 is narrower than HTC U Ultra. |
| Weight | 145 g | 168 g | HTC U Ultra is lighter than HTC U Ultra. |
| Body Colour | Brilliant black | Black | Lake blue | Gold | |
| Body Material | Metal | Metal | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.48 W/kg (body), 0.4 W/kg (head) | 0.639 W/kg (body), 0.963 W/kg (head) | |
| Connector Type | Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | HTC U Ultra | Xiaomi MI A2 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | Super LCD | IPS | |
| Screen Size (Display Size) | 5.2" | 5.99" | Xiaomi MI A2 has larger screen size than HTC U Ultra. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2160 x 1080 pixels | Xiaomi MI A2 has better screen resolution than HTC U Ultra. |
| Display Format | Full HD | Full HD+ | |
| Pixel Density | 428 ppi | 403 ppi | HTC U Ultra has better pixel density than Xiaomi MI A2. |
| Aspect Ratio | - | 18:9 | |
| Contrast Ratio | - | 1500:1 | |
| Display Features | - | 2.5D curved glass | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | HTC U Ultra | Xiaomi MI A2 |
|---|
| Processor Type (CPU) | MediaTek Helio P10 | Qualcomm Snapdragon 660 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.2 GHz | Xiaomi MI A2 has higher clock speed than HTC U Ultra. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | HTC U Ultra has 64-bit architecture. |
| MEMORY | HTC U Ultra | Xiaomi MI A2 |
|---|
| RAM | 3 GB | 4 GB | Xiaomi MI A2 has more RAM than HTC U Ultra. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 32 GB | Both phones have the same internal memory capacity. |
| User Memory | 22.8 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | - |
| CAMERA | HTC U Ultra | Xiaomi MI A2 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 20 Megapixel | Xiaomi MI A2 has better camera resolution than HTC U Ultra. |
| Sensor Size | - | 1/2.8" | |
| Sensor Type | BSI | - | |
| Sensor Name | - | Sony Exmor RS IMX376 sensor | |
| Lens Aperture | F/2.0 | F/1.75 | Xiaomi MI A2 has better lens aperture than HTC U Ultra. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | HTC U Ultra has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Minimum Focal Length (Focal Distance) | 28 mm | - | |
| Special Effects | - | HDR, Beautify 4.0 | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Burst mode, Panorama, Pro mode, Continuous shot, HYPERLAPSE, RAW mode | Burst mode, Panorama, portrait mode, AI portrait mode, group selfi mode, AI Beauty | |
| Face Recognition (Face ID) | Face detection | Face recognition | Both phones have face detection. |
| Light Source | Dual LED flash | LED light | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, 720 x 480 (480p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), Video Pic | Phase Detect Auto-Focus (PDAF), AI Dual camera, 4-in-1 Super Pixel |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/2.9" | |
| Sensor Name (2nd Camera) | - | Sony Exmor RS IMX486 sensor | |
| Lens Aperture (2nd Camera) | - | F/1.75 |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 20 Megapixel | Xiaomi MI A2 has better front camera resolution than HTC U Ultra. |
| Sensor Type (Front) | BSI | - | |
| Sensor Name (Front) | - | Sony Exmor RS IMX376 sensor | |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | F/2.2 | HTC U Ultra has better front lens aperture than HTC U Ultra. |
| Focus Adjustment | Automatic | Automatic | |
| Min Focal Length (Front) | 26.5 mm | - | |
| Special Effects (Front) | Live make-up | - | |
| HDR Mode (Front) | Auto HDR mode | - | |
| Camera Modes (Front) | Tap to focus, selfie panorama, Auto selfie (smile selfie, still selfie) | - | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi MI A2 has face detection. |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | - | |
| Camera Features (Front) | HTC UltraPixel Camera, Voice selfie, Self timer up to 10 seconds | AI-powered portrait mode |
| BATTERY AND CHARGING | HTC U Ultra | Xiaomi MI A2 |
|---|
| Battery Capacity (Battery Size) | 2500 mAh | 3010 mAh | Xiaomi MI A2 has larger battery capacity than HTC U Ultra. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 3.0 | Xiaomi MI A2 has fast charging technology. |
| Standby Time | 427.54 hours | - | |
| Talk Time | 912 minutes | - | |
| Run Time Details | Talk (3G): up to 912 min Standby (3G): up to 427.54 hrs |
- | |
| Battery Technology | - | Lithium Ion |
| CELLULAR | HTC U Ultra | Xiaomi MI A2 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 6.0 (Marshmallow) | Android One | |
| User Interface | HTC Sense | - | |
| Intelligent Assistant | HTC Sense Companion | Google Assistant | |
| Navigation | GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | HTC U Ultra | Xiaomi MI A2 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE Advanced, VoLTE, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | Infrared (IrDA), IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| NFC | Yes | - | HTC U Ultra has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | HTC U Ultra | Xiaomi MI A2 |
|---|
| Supported Digital Audio Standards | WAV, AAC, MP3, FLAC, OGG, M4A, MID | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, MIDI, MP4, AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, MPEG-4, 3GP, TS, WebM | MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP | |
| Sound Enhancements | HTC BoomSound Hi-Fi Edition | - |
| FEATURES | HTC U Ultra | Xiaomi MI A2 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Ambient light sensor, proximity sensor, digital compass, magnetometer, gyro sensor, G-sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, vibration sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader | |
| Additional Phone Features | AirPlay wireless streaming, sharing media via DLNA, Wi-Fi Miracast, Noise Cancellation Technology, Flip to Mute function, Power Saving Mode, Wi-Fi Calling, Pocket mode, Hi-Res Audio, Motion Launch, Android Sensor Hub, HTC Connect, Extreme power saving mode, Hi-Res audio stereo recording, HTC Usonic, Quiet ring on pick up | Wi-Fi Miracast, AI Engine |
| OTHERS | HTC U Ultra | Xiaomi MI A2 |
|---|
| Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool, clear soft case, Type-C to audio converter |
|---|
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