Detailed comparison and review of HTC U11 and Xiaomi Redmi S2. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | HTC U11 | Xiaomi Redmi S2 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 153.9 mm | 160.73 mm | Xiaomi Redmi S2 has greater height than HTC U11. |
| Width | 75.9 mm | 77.26 mm | Xiaomi Redmi S2 has greater width than HTC U11. |
| Depth | 7.9 mm | 8.1 mm | HTC U11 is narrower than HTC U11. |
| Weight | 169 g | 170 g | HTC U11 is lighter than HTC U11. |
| Body Colour | Ice white | Sapphire blue | Brilliant black | Amazing silver | Grey | Blue | Rose gold | Gold | Black | Dark grey | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | IP67 | - | |
| SAR Value | 0.6 W/kg (body), 0.45 W/kg (head) | 1.577 W/kg (body), 0.429 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | HTC U11 | Xiaomi Redmi S2 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | Super LCD 5 | - | |
| Screen Size (Display Size) | 5.5" | 5.99" | Xiaomi Redmi S2 has larger screen size than HTC U11. |
| Screen Resolution (Display Resolution) | 2560 x 1440 pixels | 1440 x 720 pixels | HTC U11 has better screen resolution than Xiaomi Redmi S2. |
| Display Format | QHD | HD+ | |
| Pixel Density | - | 269 ppi | |
| Aspect Ratio | - | 18:9 | |
| Max Brightness | - | 450 cd/m² | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | - | 1000:1 | |
| Display Features | 3D curved glass, Display colour personalisation, HTC Edge Sense | Night Display, Sunlight Display, Reading mode, Colour temperature adjustment | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | HTC U11 | Xiaomi Redmi S2 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 835 | Qualcomm Snapdragon 625 | |
|---|---|---|---|
| Clock Speed | 2.45 GHz | - | |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | - | Qualcomm ADRENO 506 |
| MEMORY | HTC U11 | Xiaomi Redmi S2 |
|---|
| RAM | 4 GB | 3 GB | HTC U11 has more RAM than Xiaomi Redmi S2. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | HTC U11 has more internal memory than Xiaomi Redmi S2. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSDHC, microSDXC - up to 256 GB |
| CAMERA | HTC U11 | Xiaomi Redmi S2 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 12 Megapixel | Both phones have the same camera resolution. |
| Sensor Type | BSI | - | |
| Lens Aperture | F/1.7 | F/2.2 | HTC U11 has better lens aperture than HTC U11. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | HTC U11 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Self-Timer Delay | 10 sec | - | |
| Special Effects | HDR Boost | HDR, low light enhancement | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, Pro mode, HYPERLAPSE, RAW mode | Panorama, portrait mode, AI portrait mode | |
| Face Recognition (Face ID) | Face detection | Face recognition | Both phones have face detection. |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 3840 x 2160 (4K), Slo-mo video 1920 x 1080 (1080p) at 120 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Sapphire crystal lens cover, HTC Zoe, Phase Detect Auto-Focus (PDAF), Video Pic, HTC UltraPixel Camera 2, 32s manual exposure, RAW image capture, UltraSpeed Autofocus | Phase Detect Auto-Focus (PDAF), AI Dual camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 5 Megapixel |
|---|
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 16 Megapixel | Both phones have the same front camera resolution. |
| Sensor Type (Front) | BSI | - | |
| Lens Type (Front) | - | Wide-angle lens | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Focus Adjustment | Automatic | - | |
| Special Effects (Front) | Live make-up | Precise bokeh effect, AI Beautify 4.0 | |
| HDR Mode (Front) | Auto HDR mode | Auto HDR mode | |
| Camera Modes (Front) | Tap to focus, selfie panorama, Auto selfie (smile selfie, still selfie) | Wide selfie mode | |
| Light Source (Front) | - | LED flash | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | - | |
| Camera Features (Front) | HTC UltraPixel Camera, Voice selfie, Self timer up to 10 seconds | - |
| BATTERY AND CHARGING | HTC U11 | Xiaomi Redmi S2 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 3080 mAh | Xiaomi Redmi S2 has larger battery capacity than HTC U11. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0 | - | HTC U11 has fast charging technology. |
| Standby Time | 336 hours | - | |
| Talk Time | 1470 minutes | - | |
| Run Time Details | Talk (3G/4G): up to 1470 min Standby (3G/4G): up to 336 hrs |
- |
| CELLULAR | HTC U11 | Xiaomi Redmi S2 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 7.1 Nougat | - | |
| User Interface | HTC Sense | MIUI 9 | |
| Intelligent Assistant | HTC Sense Companion | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | HTC U11 | Xiaomi Redmi S2 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, VoLTE, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, 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 5, Band 8 | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 20, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 DD, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, 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 802.11b/g/n | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 4.2 | |
| Bluetooth Profiles | HFP, HSP, A2DP, AVRCP, HID, HOGP | - | |
| NFC | Yes | - | HTC U11 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | HTC U11 | Xiaomi Redmi S2 |
|---|
| Supported Digital Audio Standards | WAV, AAC, MP3, FLAC, OGG, M4A, MID | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD, AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, MPEG-4, 3GP, TS, WebM | VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP | |
| Sound Enhancements | HTC BoomSound Hi-Fi Edition | - |
| FEATURES | HTC U11 | Xiaomi Redmi S2 |
|---|
| 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, motion-detecting accelerometer, edge sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor | |
| Security Devices | Fingerprint reader | Face recognition, 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, 4 mics 3D Audio recording, Quiet ring on pick up | Infrared remote control, Dual microphones |
| OTHERS | HTC U11 | Xiaomi Redmi S2 |
|---|
| Included Accessories | Cleaning cloth, SIM card removal tool, HTC USonic Earphones, HTC Rapid Charger 3.0, HTC U11 Clear Case, USB-C to 3.5 jack adapter, USB-C cable | USB cable, power adapter, SIM card removal tool, clear soft case | |
|---|---|---|---|
| Compliant Standards | IP67 | - | |
| Max Depth of Water Resistance | 1 m | - |
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