Detailed comparison and review of Lenovo S820 and Xiaomi Redmi Note 12. 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 | Lenovo S820 | Xiaomi Redmi Note 12 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 139.5 mm | 165.66 mm | Xiaomi Redmi Note 12 has greater height than Lenovo S820. |
| Width | 69.7 mm | 75.96 mm | Xiaomi Redmi Note 12 has greater width than Lenovo S820. |
| Depth | 9 mm | 7.85 mm | Xiaomi Redmi Note 12 is narrower than Lenovo S820. |
| Weight | 143 g | 183.5 g | Lenovo S820 is lighter than Lenovo S820. |
| Body Colour | Flamingo red | Ice blue | Onyx grey | Mint green | |
| Protection | - | Dustproof, splashproof | |
| Waterproof (Water-resistant) | - | - | Xiaomi Redmi Note 12 is waterproof. |
| IP rating | - | IP53 | |
| Repairability Index | - | 7.5 (out of 10) | |
| SAR Value | 0.572 W/kg (body) | 2.55 W/kg (limb), 0.9 W/kg (head), 0.995 W/kg (body) | |
| Integrated Components | FM radio | - | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Lenovo S820 | Xiaomi Redmi Note 12 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | IPS | AMOLED | |
| Screen Size (Display Size) | 4.7" | 6.67" | Xiaomi Redmi Note 12 has larger screen size than Lenovo S820. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 2400 x 1080 pixels | Xiaomi Redmi Note 12 has better screen resolution than Lenovo S820. |
| Display Format | HD | Full HD+ | |
| Pixel Density | 312 ppi | 395 ppi | Xiaomi Redmi Note 12 has better pixel density than Lenovo S820. |
| Max Brightness | - | 1200 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 4500000:1 | |
| Display Refresh Rate | - | 120 Hz | |
| Touch Sampling Rate | - | 240 Hz | |
| Display Features | - | Sunlight Display, Reading mode, DCI-P3 Wide colour gamut, DotDisplay, E2 Pro | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | - |
| PROCESSOR | Lenovo S820 | Xiaomi Redmi Note 12 |
|---|
| Processor Type (CPU) | MediaTek | Qualcomm Snapdragon 685 | |
|---|---|---|---|
| Processor Number | MT6589 | - | |
| Clock Speed | 1.2 GHz | 2.8 GHz | Xiaomi Redmi Note 12 has higher clock speed than Lenovo S820. |
| Processor Core Qty | Quad-core | 8-core | Xiaomi Redmi Note 12 has higher processor core quantity than Lenovo S820. |
| Graphics System (GPU) | PowerVR SGX544 | Qualcomm ADRENO 610 |
| MEMORY | Lenovo S820 | Xiaomi Redmi Note 12 |
|---|
| RAM | 1 GB | LPDDR4X SDRAM - 4 GB | Xiaomi Redmi Note 12 has more RAM than Lenovo S820. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 4 GB | 128 GB | Xiaomi Redmi Note 12 has more internal memory than Lenovo S820. |
| Memory Interface | - | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC - up to 32 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Lenovo S820 | Xiaomi Redmi Note 12 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 50 Megapixel | Xiaomi Redmi Note 12 has better camera resolution than Lenovo S820. |
| Sensor Size | - | 1/2.76" | |
| Sensor Name | - | Samsung ISOCELL JN1 | |
| Lens Aperture | - | F/1.8 | |
| Lens Construction | - | 5-element | |
| Pixel Size | - | 0.64 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | Bokeh effect | |
| Camera Modes | - | Portrait mode | |
| Face Recognition (Face ID) | Face detection | - | Lenovo S820 has face detection. |
| Light Source | LED light | LED flash | |
| Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | - | 4-in-1 to 1.28μm pixel |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/4" | |
| Sensor Name (2nd Camera) | - | Omnivision OV08D sensor | |
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Lens Element Qty (2nd Camera) | - | 5-element | |
| Field of View (2nd Camera) | - | 120 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.12 μm |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Camera Functions (3rd Camera) | - | Macro camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 2 Megapixel | 13 Megapixel | Xiaomi Redmi Note 12 has better front camera resolution than Lenovo S820. |
| Sensor Size (Front) | - | 1/3.0" | |
| Lens Aperture (Front) | - | F/2.45 | |
| Lens Element Qty (Front) | - | 5-element | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | Lenovo S820 | Xiaomi Redmi Note 12 |
|---|
| Battery Capacity (Battery Size) | 2000 mAh | 5000 mAh | Xiaomi Redmi Note 12 has larger battery capacity than Lenovo S820. |
|---|---|---|---|
| Fast Charging Technology | - | Mi-FC fast charging technology | Xiaomi Redmi Note 12 has fast charging technology. |
| Standby Time | 140 hours | - | |
| Talk Time | 1320 minutes | 1860 minutes | Xiaomi Redmi Note 12 has longer battery life when making calls than Lenovo S820. |
| Run Time Details | Talk (GSM): up to 1320 min Talk (WCDMA): up to 600 min Standby (GSM): up to 140 hrs Standby (WCDMA): up to 140 hrs |
Talk: up to 1860 min Gaming: up to 9 hrs Playback (video): up to 21 hrs |
|
| Battery Technology | Lithium polymer | - |
| CELLULAR | Lenovo S820 | Xiaomi Redmi Note 12 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 3G | 4G | Xiaomi Redmi Note 12 has more advanced generation mobile network. |
| Operating System | Android 4.2 (Jelly Bean) | Android 13 | |
| User Interface | - | MIUI 14 | |
| Navigation | GPS, A-GPS | GPS, GLONASS, Galileo |
| COMMUNICATIONS | Lenovo S820 | Xiaomi Redmi Note 12 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+ | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 850, 900 | |
| 4G LTE Band | - | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | - | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 3.0 | Bluetooth 5.0 | |
| Bluetooth Profiles | A2DP | - | |
| Messaging Services | SMS, MMS | - |
| MEDIA | Lenovo S820 | Xiaomi Redmi Note 12 |
|---|
| Supported Digital Audio Standards | WAV, WMA, MP3, eAAC+ | - | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, WMV, H.264 | - |
| FEATURES | Lenovo S820 | Xiaomi Redmi Note 12 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyroscope | |
| Security Devices | - | Face recognition, fingerprint reader (side) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | Active noise-cancellation | Graphite cooling, IR blaster, coin vibration motor |
| OTHERS | Lenovo S820 | Xiaomi Redmi Note 12 |
|---|
| Included Accessories | USB cable, power adapter | 33W charger | |
|---|---|---|---|
| Compliant Standards | - | IP53, SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification, Netflix HD Certification |
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