Side by side comparison and review of HTC Desire 820 and Xiaomi Redmi S2. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | HTC Desire 820 | Xiaomi Redmi S2 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 157.7 mm | 160.73 mm | Xiaomi Redmi S2 has greater height than HTC Desire 820. |
| Width | 78.74 mm | 77.26 mm | HTC Desire 820 has greater width than Xiaomi Redmi S2. |
| Depth | 7.74 mm | 8.1 mm | HTC Desire 820 is narrower than HTC Desire 820. |
| Weight | 155 g | 170 g | HTC Desire 820 is lighter than HTC Desire 820. |
| Body Colour | Tuxedo grey | Marble white | Grey | Blue | Rose gold | Gold | Black | Dark grey | |
| Body Material | Polycarbonate | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.323 W/kg (body), 0.373 W/kg (head) | 1.577 W/kg (body), 0.429 W/kg (head) | |
| Integrated Components | FM radio | - | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
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 | - | Dual-SIM |
| DISPLAY | HTC Desire 820 | Xiaomi Redmi S2 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | Super LCD 2 | - | |
| Screen Size (Display Size) | 5.5" | 5.99" | Xiaomi Redmi S2 has larger screen size than HTC Desire 820. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 1440 x 720 pixels | Xiaomi Redmi S2 has better screen resolution than HTC Desire 820. |
| Display Format | HD | HD+ | |
| Pixel Density | 267 ppi | 269 ppi | Xiaomi Redmi S2 has better pixel density than HTC Desire 820. |
| Aspect Ratio | - | 18:9 | |
| Max Brightness | - | 450 cd/m² | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Contrast Ratio | - | 1000:1 | |
| Display Features | - | Night Display, Sunlight Display, Reading mode, Colour temperature adjustment | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | - |
| PROCESSOR | HTC Desire 820 | Xiaomi Redmi S2 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 615 | Qualcomm Snapdragon 625 | |
|---|---|---|---|
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | - | Yes | Xiaomi Redmi S2 has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 405 | Qualcomm ADRENO 506 |
| MEMORY | HTC Desire 820 | Xiaomi Redmi S2 |
|---|
| RAM | 2 GB | 3 GB | Xiaomi Redmi S2 has more RAM than HTC Desire 820. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 32 GB | Xiaomi Redmi S2 has more internal memory than HTC Desire 820. |
| User Memory | 11.2 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSDXC - up to 256 GB |
| CAMERA | HTC Desire 820 | Xiaomi Redmi S2 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 12 Megapixel | HTC Desire 820 has better camera resolution than Xiaomi Redmi S2. |
| Sensor Type | BSI-CMOS | - | |
| Lens Aperture | F/2.2 | F/2.2 | Both phones have the same camera lens aperture. |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | 28 mm | - | |
| Special Effects | - | HDR, low light enhancement | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Burst mode | Panorama, portrait mode, AI portrait mode | |
| Face Recognition (Face ID) | Face detection | Face recognition | Both phones have face detection. |
| Light Source | LED light | LED flash | |
| Still Image Resolutions | 4160 x 3120 | - | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Auto selfie, Photo Booth feature, Live Makeup, Split Capture | 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) | 8 Megapixel | 16 Megapixel | Xiaomi Redmi S2 has better front camera resolution than HTC Desire 820. |
| Sensor Type (Front) | BSI-CMOS | - | |
| Lens Type (Front) | - | Wide-angle lens | |
| Lens Aperture (Front) | - | F/2.0 | |
| Special Effects (Front) | Face fusion | Precise bokeh effect, AI Beautify 4.0 | |
| HDR Mode (Front) | - | Auto HDR mode | |
| Camera Modes (Front) | - | Wide selfie mode | |
| Light Source (Front) | - | LED flash | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | - |
| BATTERY AND CHARGING | HTC Desire 820 | Xiaomi Redmi S2 |
|---|
| Battery Capacity (Battery Size) | 2600 mAh | 3080 mAh | Xiaomi Redmi S2 has larger battery capacity than HTC Desire 820. |
|---|---|---|---|
| Standby Time | 455 hours | - | |
| Talk Time | 1068 minutes | - | |
| Run Time Details | Talk (WCDMA): up to 1068 min Standby (WCDMA): up to 455 hrs |
- | |
| Battery Technology | Lithium polymer | - |
| CELLULAR | HTC Desire 820 | 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 4.4 (KitKat) | - | |
| User Interface | HTC Sense | MIUI 9 | |
| Navigation | A-GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | HTC Desire 820 | Xiaomi Redmi S2 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, 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 | |
| 3G UMTS Frequency | - | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 3, Band 7, Band 8, Band 20 | Band 1, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40 | |
| 4G LTE Frequency | FDD 1800+, FDD 2600, FDD 900, FDD 800 DD | 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 | Infrared (IrDA), IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 4.2 | |
| Bluetooth Profiles | A2DP | - | |
| NFC | Yes | - | HTC Desire 820 has NFC reader for mobile payments. |
| Communication Features | Mobile Email client, Internet browser | - | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | HTC Desire 820 | Xiaomi Redmi S2 |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, OGG, MIDI, M4A, WMA 9 | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD, AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | AVI, MPEG-4, 3GP, H.264, H.263, WMV9, 3G2 | VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP | |
| Sound Enhancements | HTC BoomSound | - |
| FEATURES | HTC Desire 820 | Xiaomi Redmi S2 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor | |
| Security Devices | - | Face recognition, fingerprint reader | |
| Personal Information Management | Calendar, synchronization with PC, calculator, reminder, alarm clock | - | |
| Additional Phone Features | DLNA Certified, sharing media via DLNA, Wi-Fi Miracast, HTC BlinkFeed, HTC Sense Voice | Infrared remote control, Dual microphones |
| OTHERS | HTC Desire 820 | Xiaomi Redmi S2 |
|---|
| Included Accessories | Power adapter | USB cable, power adapter, SIM card removal tool, clear soft case |
|---|
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