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General
| Name | Nokia Lumia 820 | Nokia Lumia 525 |
|---|---|---|
| Launch Date | 1 Sept 2012 | 1 Nov 2013 |
| Brand | Nokia | Nokia |
| Colors | Black, Gray, Red, Yellow, White, Blue, Violet | - |
Display
| Display Size | 4.3 Inches | 4.0 Inches |
|---|---|---|
| Display Type | AMOLED | LCD |
| Resolution | 480 x 800 pixels | 480 x 800 pixels |
| Refresh Rate | 60Hz | 60Hz |
| Display Protection | - | Scratch-resistant glass |
| Aspect Ratio | 5:3 | 5:3 |
| Features | 62.1% (screen to body ratio), 217 ppi | - |
Platform
| Operating System | Microsoft Windows Phone 8, upgradable to 8.1 | Microsoft Windows Phone 8, upgradable to 8.1 |
|---|---|---|
| Processor | Snapdragon S4 Plus | Qualcomm |
| CPU | Dual-core 1.5 GHz Krait | - |
| GPU | Adreno 225 | - |
Memory
| Ram | 1GB | 1GB |
|---|---|---|
| Storage | 8GB | 8GB |
| SD Card Slot | Yes | Yes |
Camera
| Type | Single Camera | Single Camera |
|---|---|---|
| Main | 8 MP, AF | 5 MP |
| Video | 1080p@30fps | 720p@30fps |
| Features | Carl Zeiss optics | - |
Front Camera
| Type | Single Camera | No Front Camera |
|---|---|---|
| Selfie | VGA | - |
| Video | Yes | - |
Battery
| Capacity | 1650 mAh | 1430 mAh |
|---|---|---|
| Battery Technology | Li-Ion, removable | Li-Ion |
| Charging Speed | - | 5W |
| USB Type | Micro USB, USB 2.0 | Micro USB |
| Wireless Charging | No | No |
Network
| Sim | Single Sim | Single Sim |
|---|---|---|
| Sim Type | Micro-SIM | |
| Technology | 4G | 3G |
| Bands | ||
Connectivity
| Wi-Fi | WiFi 2.4 | WiFi 2.4 |
|---|---|---|
| Bluetooth | V4.0 | V4.0 |
| 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 | 119.9 x 64 x 9.9 mm |
|---|---|---|
| Weight | 160 g | 124 g |
| Frame | - | - |
| Back | - | - |
| IP Rating | No | No |
Others
| Sensors | Accelerometer, gyro, proximity, compass | - |
|---|---|---|
| SAR | 1.37 W/kg (head), 0.71 W/kg (body) | - |
| SAR EU | 0.79 W/kg (head) | - |
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