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General
| Name | Nokia Lumia 820 | Microsoft Lumia 550 |
|---|---|---|
| Launch Date | 1 Sept 2012 | 1 Oct 2015 |
| Brand | Nokia | Microsoft |
| Colors | Black, Gray, Red, Yellow, White, Blue, Violet | Black, White |
Display
| Display Size | 4.3 Inches | 4.7 Inches |
|---|---|---|
| Display Type | AMOLED | IPS LCD, |
| Resolution | 480 x 800 pixels | 720 x 1280 pixels |
| Refresh Rate | 60Hz | 60Hz |
| Aspect Ratio | 5:3 | 16:9 |
| Features | 62.1% (screen to body ratio), 217 ppi | 64.7% (screen to body ratio), 315 ppi |
Platform
| Operating System | Microsoft Windows Phone 8, upgradable to 8.1 | Microsoft Windows 10 |
|---|---|---|
| Processor | Snapdragon S4 Plus | Snapdragon 210 (28 nm) |
| CPU | Dual-core 1.5 GHz Krait | Quad-core 1.1 GHz Cortex-A7 |
| GPU | Adreno 225 | Adreno 304 |
Memory
| Ram | 1GB | 1GB |
|---|---|---|
| Storage | 8GB | 8GB |
| Storage Type | - | eMMC 4.5 |
| SD Card Slot | Yes | Yes |
Camera
| Type | Single Camera | Single Camera |
|---|---|---|
| Main | 8 MP, AF | 5 MP, f/2.4, 1/4.0", AF |
| Video | 1080p@30fps | 720p@30fps |
| Features | Carl Zeiss optics | - |
Front Camera
| Type | Single Camera | Single Camera |
|---|---|---|
| Selfie | VGA | 2 MP, f/2.8 |
| Video | Yes | 480p |
Battery
| Capacity | 1650 mAh | 2100 mAh |
|---|---|---|
| Battery Technology | Li-Ion, removable | Li-Ion, removable |
| Charging Speed | - | - |
| USB Type | Micro USB, USB 2.0 | Micro USB, USB 2.0 |
| Wireless Charging | No | No |
Network
| Sim | Single Sim | Single Sim |
|---|---|---|
| Sim Type | Micro-SIM | Nano-SIM |
| Technology | 4G | 4G |
| Bands | ||
Connectivity
| Wi-Fi | WiFi 2.4 | WiFi 2.4 |
|---|---|---|
| Bluetooth | V4.0 | V4.1 |
| NFC | Yes | No |
| GPS | Yes | Yes |
Audio
| Loudspeaker | Yes | Yes |
|---|---|---|
| Headphone Jack | Yes | Yes |
Biometric
| Fingerprint | No | No |
|---|---|---|
| Face Unlock | Not Available | Not Available |
Body
| Dimensions | 123.8 x 68.5 x 9.9 mm | 136.1 x 67.8 x 9.9 mm |
|---|---|---|
| Weight | 160 g | 141.9 g |
| Frame | - | Plastic Frame |
| Back | - | Plastic Back |
| IP Rating | No | No |
Others
| Sensors | Accelerometer, gyro, proximity, compass | Accelerometer, proximity |
|---|---|---|
| SAR | 1.37 W/kg (head), 0.71 W/kg (body) | - |
| SAR EU | 0.79 W/kg (head) | - |
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