Detailed comparison and review of Lenovo S820 and Xiaomi Redmi A1. 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 A1 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 139.5 mm | 164.9 mm | Xiaomi Redmi A1 has greater height than Lenovo S820. |
| Width | 69.7 mm | 76.75 mm | Xiaomi Redmi A1 has greater width than Lenovo S820. |
| Depth | 9 mm | 9.09 mm | Lenovo S820 is narrower than Lenovo S820. |
| Weight | 143 g | 192 g | Lenovo S820 is lighter than Lenovo S820. |
| Body Colour | Flamingo red | Light green | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.572 W/kg (body) | 0.997 W/kg (body), 0.846 W/kg (head), 2.541 W/kg (limb) | |
| Integrated Components | FM radio | 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) | Micro SIM | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Lenovo S820 | Xiaomi Redmi A1 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | IPS | - | |
| Screen Size (Display Size) | 4.7" | 6.52" | Xiaomi Redmi A1 has larger screen size than Lenovo S820. |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 1600 x 720 pixels | Xiaomi Redmi A1 has better screen resolution than Lenovo S820. |
| Display Format | HD | HD+ | |
| Pixel Density | 312 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Colour Depth | 16.7 million colours | - | |
| Display Features | - | Night light screen, Dot Drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | - |
| PROCESSOR | Lenovo S820 | Xiaomi Redmi A1 |
|---|
| Processor Type (CPU) | MediaTek | MediaTek Helio A22 | |
|---|---|---|---|
| Processor Number | MT6589 | - | |
| Clock Speed | 1.2 GHz | 2 GHz | Xiaomi Redmi A1 has higher clock speed than Lenovo S820. |
| Processor Core Qty | Quad-core | Quad-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | PowerVR SGX544 | - |
| MEMORY | Lenovo S820 | Xiaomi Redmi A1 |
|---|
| RAM | 1 GB | LPDDR4X SDRAM - 2 GB | Xiaomi Redmi A1 has more RAM than Lenovo S820. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 4 GB | 32 GB | Xiaomi Redmi A1 has more internal memory than Lenovo S820. |
| Memory Interface | - | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC - up to 32 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Lenovo S820 | Xiaomi Redmi A1 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 8 Megapixel | Lenovo S820 has better camera resolution than Xiaomi Redmi A1. |
| Lens Aperture | - | F/2.0 | |
| Focus Adjustment | Automatic | - | |
| Special Effects | - | HDR | |
| Camera Modes | - | Time-lapse mode, portrait mode, Short video 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) | - | AI Dual camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel |
|---|
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 2 Megapixel | 5 Megapixel | Xiaomi Redmi A1 has better front camera resolution than Lenovo S820. |
| Lens Aperture (Front) | - | F/2.2 | |
| Camera Modes (Front) | - | Beautify | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | - | AI Selfie |
| BATTERY AND CHARGING | Lenovo S820 | Xiaomi Redmi A1 |
|---|
| Battery Capacity (Battery Size) | 2000 mAh | 5000 mAh | Xiaomi Redmi A1 has larger battery capacity than Lenovo S820. |
|---|---|---|---|
| Standby Time | 140 hours | 746 hours | Xiaomi Redmi A1 has longer standby time than Lenovo S820. |
| Talk Time | 1320 minutes | 1800 minutes | Xiaomi Redmi A1 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 1800 min Standby: up to 746 hrs Playback (video): up to 22 hrs Playback (Music): up to 161 hrs |
|
| Battery Technology | Lithium polymer | - |
| CELLULAR | Lenovo S820 | Xiaomi Redmi A1 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 3G | 4G | Xiaomi Redmi A1 has more advanced generation mobile network. |
| Operating System | Android 4.2 (Jelly Bean) | Android 12 (Go edition) | |
| Navigation | GPS, A-GPS | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Lenovo S820 | Xiaomi Redmi A1 |
|---|
| 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 | Wi-Fi | |
| Bluetooth | Bluetooth 3.0 | Bluetooth 5.0 | |
| Bluetooth Profiles | A2DP | - | |
| Messaging Services | SMS, MMS | - |
| MEDIA | Lenovo S820 | Xiaomi Redmi A1 |
|---|
| Supported Digital Audio Standards | WAV, WMA, MP3, eAAC+ | - | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, WMV, H.264 | - |
| FEATURES | Lenovo S820 | Xiaomi Redmi A1 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor | Accelerometer | |
| Additional Phone Features | Active noise-cancellation | Fast Charging |
| OTHERS | Lenovo S820 | Xiaomi Redmi A1 |
|---|
| Included Accessories | USB cable, power adapter | USB cable, SIM card removal tool, 10W charger |
|---|
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