Nokia Lumia 820 vs Microsoft Lumia 640 LTE Dual SIM
| Phones Images | |||||
|---|---|---|---|---|---|
|
|
||||
| PHONES | ||
|---|---|---|
| Phone Names | Nokia Lumia 820 | Microsoft Lumia 640 LTE Dual SIM |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G bands | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700 / 1900 / 2100 |
| 4G bands | 1, 3, 7, 8, 20 | 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40 |
| EDGE | Class 12 | - |
| GPRS | Class 12 | - |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat3 100/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Technology | GSM / HSPA / LTE | GSM / HSPA / LTE |
| Launch | ||
|---|---|---|
| Announced | 2012, September. Released 2012, November | 2015, March. Released 2015, April |
| Status | Discontinued | Discontinued |
| Body | ||
|---|---|---|
| Dimensions | 123.8 x 68.5 x 9.9 mm, 83.5 cc (4.87 x 2.70 x 0.39 in) | 141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
| SIM | Micro-SIM | Dual SIM (Micro-SIM, dual stand-by) |
| Weight | 160 g (5.64 oz) | 145 g (5.11 oz) |
| Display | ||
|---|---|---|
| Protection | - | Corning Gorilla Glass 3 |
| Resolution | 480 x 800 pixels, 5:3 ratio (~217 ppi density) | 720 x 1280 pixels, 16:9 ratio (~294 ppi density) |
| Size | 4.3 inches, 52.6 cm2 (~62.1% screen-to-body ratio) | 5.0 inches, 68.9 cm2 (~67.6% screen-to-body ratio) |
| Type | AMOLED | IPS LCD |
| Nokia ClearBlack display | ClearBlack display | |
| Platform | ||
|---|---|---|
| CPU | Dual-core 1.5 GHz Krait | Quad-core 1.2 GHz Cortex-A7 |
| Chipset | Qualcomm MSM8960 Snapdragon S4 Plus | Qualcomm MSM8926 Snapdragon 400 (28 nm) |
| GPU | Adreno 225 | Adreno 305 |
| OS | Microsoft Windows Phone 8, upgradable to 8.1 | Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| Internal | 8GB 1GB RAM | 8GB 1GB RAM |
| - | eMMC 4.5 | |
| Main Camera | ||
|---|---|---|
| Features | Carl Zeiss optics, dual-LED flash | LED flash |
| Single | 8 MP, AF | 8 MP, f/2.2, 28mm (wide), 1/4.0", AF |
| Video | 1080p@30fps | 1080p@30fps |
| Selfie camera | ||
|---|---|---|
| Single | VGA | 1 MP |
| Video | - | 720p |
| Sound | ||
|---|---|---|
| 3.5mm jack | Yes | Yes |
| 35mm jack | Yes | Yes |
| Loudspeaker | Yes | Yes |
| Comms | ||
|---|---|---|
| Bluetooth | 4.0, A2DP, EDR, LE/ aptX after WP8 Denim update | 4.0, A2DP |
| NFC | Yes | Yes |
| Positioning | GPS, A-GPS, GLONASS | GPS, GLONASS, BDS |
| Radio | FM radio | FM radio |
| USB | microUSB 2.0 | microUSB 2.0 |
| WLAN | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
| Features | ||
|---|---|---|
| Sensors | Accelerometer, gyro, proximity, compass | Accelerometer, proximity, compass |
| Battery | ||
|---|---|---|
| Music play | Up to 55 h | - |
| Stand-by | Up to 330 h (2G) / Up to 330 h (3G) | Up to 864 h (2G) / Up to 864 h (3G) |
| Talk time | Up to 14 h (2G) / Up to 8 h (3G) | Up to 26 h 30 min (2G) / Up to 17 h 30 min (3G) |
| Type | Removable Li-Ion 1650 mAh battery (BP-5T) | Li-Ion 2500 mAh, removable |
| Misc | ||
|---|---|---|
| Colors | Black, Gray, Red, Yellow, White, Blue, Violet | Glossy cyan, Orange, White, Matte black |
| Price | About 170 EUR | About 150 EUR |
| SAR | 1.37 W/kg (head) 0.71 W/kg (body) | - |
| SAR EU | 0.79 W/kg (head) | - |
| Tests | ||
|---|---|---|
| Audio quality | Noise -82.2dB / Crosstalk -81.4dB | Noise -93.1dB / Crosstalk -93.2dB |
| Battery life | Endurance rating 40h | Endurance rating 76h |
| Camera | Photo / Video | - |
| Display | Contrast ratio: Infinite (nominal) / 2.193:1 (sunlight) | Contrast ratio: 1034 (nominal), 2.563 (sunlight) |
| Loudspeaker | Voice 67dB / Noise 66dB / Ring 70dB | Voice 70dB / Noise 65dB / Ring 75dB |
| OUR TESTS | ||
|---|---|---|
| Audio quality | Noise -82.2dB / Crosstalk -81.4dB | Noise -93.1dB / Crosstalk -93.2dB |
| Battery (old) | Endurance rating 40h | Endurance rating 76h |
| Camera | Photo / Video | - |
| Display | Contrast ratio: Infinite (nominal) / 2.193:1 (sunlight) | Contrast ratio: 1034 (nominal), 2.563 (sunlight) |
| Loudspeaker | Voice 67dB / Noise 66dB / Ring 70dB | Voice 70dB / Noise 65dB / Ring 75dB |