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General
| Name | Nokia Lumia 1020 | Nokia Lumia 635 |
|---|---|---|
| Launch Date | 11 Jul 2013 | 1 Apr 2014 |
| Brand | Nokia | Nokia |
| Colors | Yellow, white, black, red (AT&T exclusive) | Bright Orange, bright green, bright yellow, white, black |
Display
| Display Size | 4.5 Inches | 4.5 Inches |
|---|---|---|
| Display Type | AMOLED | IPS LCD |
| Resolution | 768 x 1280 pixels | 480 x 854 pixels |
| Refresh Rate | 60Hz | 60Hz |
| Display Protection | Gorilla Glass 3 | Gorilla Glass 3 |
| Aspect Ratio | 5:3 | 16:9 |
| Features | 61.9% (screen to body ratio), 332 ppi | 62.9% (screen to body ratio), 221 ppi |
Platform
| Operating System | Microsoft Windows Phone 8, upgradable to 8.1 | Microsoft Windows Phone 8.1 |
|---|---|---|
| Processor | Snapdragon S4 Plus | Snapdragon 400 (28 nm) |
| CPU | Dual-core 1.5 GHz Krait | Quad-core 1.2 GHz Cortex-A7 |
| GPU | Adreno 225 | Adreno 305 |
Memory
| Ram | 2GB | 512MB |
|---|---|---|
| Storage | 32GB, 64GB | 8GB |
| Storage Type | - | eMMC 4.5 |
| SD Card Slot | No | Yes |
Camera
| Type | Single Camera | Single Camera |
|---|---|---|
| Main | 41 MP, f/2.2, 26mm, 1/1.5", 1.12µm, AF, OIS | 5 MP, 1/4.0", AF |
| Video | 1080p@30fps, 4x lossless digital zoom | 720p@30fps |
| Features | Carl Zeiss optics | Panorama |
Front Camera
| Type | Single Camera | No Front Camera |
|---|---|---|
| Selfie | 1.2 MP | - |
| Video | 720p@30fps | - |
Battery
| Capacity | 2000 mAh | 1830 mAh |
|---|---|---|
| Battery Technology | Li-Ion, non-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 | Micro-SIM |
| Technology | 4G | 4G |
| 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 | 130.4 x 71.4 x 10.4 mm | 129.5 x 66.7 x 9.2 mm |
|---|---|---|
| Weight | 158 g | 134 g |
| Frame | Plastic Frame | - |
| Back | Plastic Back | - |
| IP Rating | No | No |
Others
| Sensors | Accelerometer, gyro, proximity, compass, barometer | Accelerometer, sensor core |
|---|---|---|
| SAR | 1.23 W/kg (head), 0.97 W/kg (body) | 0.97 W/kg (head), 0.77 W/kg (body) |
| SAR EU | 0.76 W/kg (head), 0.67 W/kg (body) | 0.75 W/kg (head), 0.79 W/kg (body) |
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