Microsoft Lumia 640 LTE vs Nokia Lumia 635
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| PHONES | ||
|---|---|---|
| Phone Names | Microsoft Lumia 640 LTE | Nokia Lumia 635 |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 2100 - RM-974 |
| 4G bands | 1, 3, 7, 8, 20 | 3, 7, 20 - RM-974 |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat3 100/50 Mbps |
| Technology | GSM / HSPA / LTE | GSM / HSPA / LTE |
| 1, 2, 4, 5, 7, 12, 17 - T-Mobile | 2, 4, 5, 7, 17 - RM-975 | |
| Launch | ||
|---|---|---|
| Announced | 2015, March. Released 2015, April | 2014, April. Released 2014, June |
| Status | Discontinued | Discontinued |
| Body | ||
|---|---|---|
| Dimensions | 141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) | 129.5 x 66.7 x 9.2 mm, 78.5 cc (5.10 x 2.63 x 0.36 in) |
| SIM | Micro-SIM | Micro-SIM |
| Weight | 145 g (5.11 oz) | 134 g (4.73 oz) |
| Display | ||
|---|---|---|
| Protection | Corning Gorilla Glass 3 | Corning Gorilla Glass 3 |
| Resolution | 720 x 1280 pixels, 16:9 ratio (~294 ppi density) | 480 x 854 pixels, 16:9 ratio (~221 ppi density) |
| Size | 5.0 inches, 68.9 cm2 (~67.6% screen-to-body ratio) | 4.5 inches, 54.3 cm2 (~62.9% screen-to-body ratio) |
| Type | IPS LCD | IPS LCD |
| ClearBlack display | ClearBlack display | |
| Platform | ||
|---|---|---|
| CPU | Quad-core 1.2 GHz Cortex-A7 | Quad-core 1.2 GHz Cortex-A7 |
| Chipset | Qualcomm MSM8926 Snapdragon 400 (28 nm) | Qualcomm Snapdragon 400 (28 nm) |
| GPU | Adreno 305 | Adreno 305 |
| OS | Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10 | Microsoft Windows Phone 8.1 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| Internal | 8GB 1GB RAM | 8GB 512MB 8GB 1GB RAM |
| eMMC 4.5 | eMMC 4.5 | |
| Main Camera | ||
|---|---|---|
| Features | LED flash | Panorama |
| Single | 8 MP, f/2.2, 28mm (wide), 1/4.0", AF | 5 MP, 1/4.0", AF |
| Video | 1080p@30fps | 720p@30fps |
| Selfie camera | ||
|---|---|---|
| Single | 1 MP | - |
| Video | 720p | - |
| - | No | |
| Sound | ||
|---|---|---|
| 3.5mm jack | Yes | Yes |
| 35mm jack | Yes | Yes |
| Loudspeaker | Yes | Yes |
| Comms | ||
|---|---|---|
| Bluetooth | 4.0, A2DP | 4.0, A2DP, LE/ aptX after WP8 Denim update |
| NFC | Yes | No |
| Positioning | GPS, GLONASS, BDS | GPS, GLONASS |
| Radio | FM radio | FM radio |
| USB | microUSB 2.0 | microUSB 2.0 |
| WLAN | Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
| Features | ||
|---|---|---|
| Sensors | Accelerometer, proximity, compass | Accelerometer, sensor core |
| Battery | ||
|---|---|---|
| Music play | - | Up to 58 h |
| Stand-by | Up to 864 h (2G) / Up to 864 h (3G) | Up to 648 h |
| Talk time | Up to 26 h 30 min (2G) / Up to 17 h 30 min (3G) | Up to 12 h (2G) / Up to 14 h (3G) |
| Type | Li-Ion 2500 mAh, removable | Li-Ion 1830 mAh, removable (BL-5H) |
| Misc | ||
|---|---|---|
| Colors | Glossy cyan, Orange, White, Matte black | Bright Orange, bright green, bright yellow, white, black |
| Price | About 120 EUR | About 110 EUR |
| SAR | - | 0.97 W/kg (head) 0.77 W/kg (body) |
| SAR EU | - | 0.75 W/kg (head) 0.79 W/kg (body) |
| Tests | ||
|---|---|---|
| Audio quality | Noise -93.1dB / Crosstalk -93.2dB | - |
| Battery life | Endurance rating 76h | Endurance rating 66h |
| Camera | Photo / Video | - |
| Display | Contrast ratio: 1034 (nominal), 2.563 (sunlight) | Contrast ratio: 771:1 (nominal), 2.056 (sunlight) |
| Loudspeaker | Voice 70dB / Noise 65dB / Ring 75dB | Voice 68dB / Noise 65dB / Ring 75dB |
| OUR TESTS | ||
|---|---|---|
| Audio quality | Noise -93.1dB / Crosstalk -93.2dB | - |
| Battery (old) | Endurance rating 76h | Endurance rating 66h |
| Camera | Photo / Video | - |
| Display | Contrast ratio: 1034 (nominal), 2.563 (sunlight) | Contrast ratio: 771:1 (nominal), 2.056 (sunlight) |
| Loudspeaker | Voice 70dB / Noise 65dB / Ring 75dB | Voice 68dB / Noise 65dB / Ring 75dB |