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General
| Name | Microsoft Lumia 640 LTE Dual SIM | Google Pixel 3a |
|---|---|---|
| Launch Date | 1 Mar 2015 | 7 May 2019 |
| Brand | Microsoft | |
| Colors | Glossy cyan, Orange, White, Matte black | Just Black, Clearly White, Purple-ish |
| Models | - | G020A, G020E, G020B |
Display
| Display Size | 5.0 Inches | 5.6 Inches |
|---|---|---|
| Display Type | IPS LCD | OLED |
| Resolution | 720 x 1280 pixels | 1080 x 2220 pixels |
| Refresh Rate | 60Hz | 60Hz |
| Display Protection | Gorilla Glass 3 | Asahi Dragontrail Glass |
| Aspect Ratio | 16:9 | 18.5:9 |
| Features | 67.6% (screen to body ratio), 294 ppi | 75.0% (screen to body ratio), 441 ppi |
Platform
| Operating System | Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10 | Android 9.0 (Pie), upgradable to Android 12 |
|---|---|---|
| Processor | Snapdragon 400 (28 nm) | Snapdragon 670 (10 nm) |
| CPU | Quad-core 1.2 GHz Cortex-A7 | Octa-core (2x2.0 GHz 360 Gold & 6x1.7 GHz Kryo 360 Silver) |
| GPU | Adreno 305 | Adreno 615 |
Memory
| Ram | 1GB | 4GB |
|---|---|---|
| Ram Type | - | LPDDR4x |
| Storage | 8GB | 64GB |
| Storage Type | eMMC 4.5 | eMMC 5.1 |
| SD Card Slot | Yes | No |
Camera
| Type | Single Camera | Single Camera |
|---|---|---|
| Main | 8 MP, f/2.2, 28mm, 1/4.0", AF | 12.2 MP, f/1.8, 28mm, 1/2.55", 1.4µm, OIS |
| Video | 1080p@30fps | 4K@30fps, 1080p@30/60/120fps |
| Features | - | Pixel Shift, HDR |
Front Camera
| Type | Single Camera | Single Camera |
|---|---|---|
| Selfie | 1 MP | 8 MP, f/2.0, 24mm, 1/4" |
| Video | 720p | 1080p@30fps |
| Features | - | HDR |
Battery
| Capacity | 2500 mAh | 3000 mAh |
|---|---|---|
| Battery Technology | Li-Ion, removable | Li-Po, non-removable |
| Charging Speed | - | 18W, PD2.0 |
| USB Type | Micro USB, USB 2.0 | Type C, USB 2.0 |
| Wireless Charging | No | No |
Network
| Sim | Dual Sim | Dual Sim |
|---|---|---|
| Sim Type | Dual SIM (Micro-SIM, dual stand-by) | Nano-SIM and eSIM |
| Technology | 4G | 4G |
| Bands | ||
Connectivity
| Wi-Fi | WiFi 2.4 | WiFi 5 |
|---|---|---|
| Bluetooth | V4.0 | V5.0 |
| NFC | Yes | Yes |
| GPS | Yes | Yes |
Audio
| Loudspeaker | Yes | Stereo speakers |
|---|---|---|
| Headphone Jack | Yes | Yes |
Biometric
| Fingerprint | No | Yes |
|---|---|---|
| Fingerprint Type | - | Capacitive Fingerprint Scanner |
| Fingerprint Position | - | Rear-Mounted |
| Face Unlock | Not Available | 2D Face Unlock |
Body
| Dimensions | 141.3 x 72.2 x 8.8 mm | 151.3 x 70.1 x 8.2 mm |
|---|---|---|
| Weight | 145 g | 147 g |
| Frame | Plastic Frame | Plastic Frame |
| Back | Plastic Back | Plastic Back |
| IP Rating | No | No |
Others
| Sensors | Accelerometer, proximity, compass | Accelerometer, gyro, proximity, compass, barometer |
|---|
Benchmarks
| Antutu | - | 157913 (v7), 175433 (v8) |
|---|---|---|
| Geekbench | - | 5098 (v4.4), 1299 (v5.1) |
| GFX Bench | - | 11fps (ES 3.1 onscreen) |
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