In depth comparison and review of Xiaomi Redmi Note 4 and HTC U Ultra. 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 | Xiaomi Redmi Note 4 | HTC U Ultra |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 151 mm | 145.99 mm | Xiaomi Redmi Note 4 has greater height than HTC U Ultra. |
| Width | 76 mm | 72.9 mm | Xiaomi Redmi Note 4 has greater width than HTC U Ultra. |
| Depth | 8.38 mm | 7.99 mm | HTC U Ultra is narrower than Xiaomi Redmi Note 4. |
| Weight | 175 g | 145 g | HTC U Ultra is lighter than Xiaomi Redmi Note 4. |
| Body Colour | Grey | Silver | Gold | Brilliant black | |
| Body Material | Metal | Metal | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 0.48 W/kg (body), 0.4 W/kg (head) | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack |
Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
|
| SIM Card Type (Size) | Micro SIM, nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Single-SIM |
| DISPLAY | Xiaomi Redmi Note 4 | HTC U Ultra |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | Super LCD | |
| Screen Size (Display Size) | 5.5" | 5.2" | Xiaomi Redmi Note 4 has larger screen size than HTC U Ultra. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1920 x 1080 pixels | Both phones have the same screen resolution. |
| Display Format | Full HD | Full HD | |
| Pixel Density | 401 ppi | 428 ppi | HTC U Ultra has better pixel density than Xiaomi Redmi Note 4. |
| Contrast Ratio | 1000:1 | - | |
| Display Features | Night Display | - | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass (scratch resistant glass) |
| PROCESSOR | Xiaomi Redmi Note 4 | HTC U Ultra |
|---|
| Processor Type (CPU) | MediaTek Helio X20 | MediaTek Helio P10 | |
|---|---|---|---|
| Clock Speed | 2.1 GHz | 2 GHz | Xiaomi Redmi Note 4 has higher clock speed than HTC U Ultra. |
| Processor Core Qty | 10-core | 8-core | Xiaomi Redmi Note 4 has higher processor core quantity than HTC U Ultra. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Mali T880 MP4 | - |
| MEMORY | Xiaomi Redmi Note 4 | HTC U Ultra |
|---|
| RAM | 2 GB | 3 GB | HTC U Ultra has more RAM than Xiaomi Redmi Note 4. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 32 GB | HTC U Ultra has more internal memory than Xiaomi Redmi Note 4. |
| User Memory | - | 22.8 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSDXC - up to 2 TB |
| CAMERA | Xiaomi Redmi Note 4 | HTC U Ultra |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 16 Megapixel | HTC U Ultra has better camera resolution than Xiaomi Redmi Note 4. |
| Sensor Type | - | BSI | |
| Lens Aperture | F/2.0 | F/2.0 | Both phones have the same camera lens aperture. |
| Lens Construction | 5-element | - | |
| 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 | |
| HDR Mode | Auto HDR mode | Auto HDR mode | |
| Camera Modes | Burst mode, Panorama | Burst mode, Panorama, Pro mode, Continuous shot, HYPERLAPSE, RAW mode | |
| Face Recognition (Face ID) | Face recognition | Face detection | Both phones have face detection. |
| Light Source | LED light | Dual LED flash | |
| Video Resolutions | 1920 x 1080 (1080p), 1280 x 720 (720p) | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | Phase Detect Auto-Focus (PDAF), Video Pic |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 16 Megapixel | HTC U Ultra has better front camera resolution than Xiaomi Redmi Note 4. |
| Sensor Type (Front) | - | BSI | |
| Lens Type (Front) | Wide-angle lens | Wide-angle lens | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Focus Adjustment | - | Automatic | |
| Min Focal Length (Front) | - | 26.5 mm | |
| Special Effects (Front) | Real-time face beautification | 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 Redmi Note 4 has face detection. |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) | |
| Camera Features (Front) | - | HTC UltraPixel Camera, Voice selfie, Self timer up to 10 seconds |
| BATTERY AND CHARGING | Xiaomi Redmi Note 4 | HTC U Ultra |
|---|
| Battery Capacity (Battery Size) | 4100 mAh | 2500 mAh | Xiaomi Redmi Note 4 has larger battery capacity than HTC U Ultra. |
|---|---|---|---|
| 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 |
| CELLULAR | Xiaomi Redmi Note 4 | HTC U Ultra |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 6.0 (Marshmallow) | Android 6.0 (Marshmallow) | |
| User Interface | MIUI 8 | HTC Sense | |
| Intelligent Assistant | - | HTC Sense Companion | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS |
| COMMUNICATIONS | Xiaomi Redmi Note 4 | HTC U Ultra |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE Advanced, VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 4.2 | |
| Bluetooth Profiles | HID | - | |
| NFC | - | Yes | HTC U Ultra has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi Redmi Note 4 | HTC U Ultra |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD | WAV, AAC, MP3, FLAC, OGG, M4A, MID | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, VC-1, XviD, MPEG-4, H.264, M4V, H.265 | MKV, MPEG-4, 3GP, TS, WebM | |
| Sound Enhancements | - | HTC BoomSound Hi-Fi Edition |
| FEATURES | Xiaomi Redmi Note 4 | HTC U Ultra |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor | Ambient light sensor, proximity sensor, digital compass, magnetometer, gyro sensor, G-sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader | |
| Additional Phone Features | Infrared remote control | 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 |
| OTHERS | Xiaomi Redmi Note 4 | HTC U Ultra |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|
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