Microsoft
Side-by-side technical data
Microsoft Lumia 640 Dual SIM vs Microsoft Lumia 550
Compare up to four phones using typed, normalized technical data. Measurements stay numeric, capabilities stay boolean, and options stay comparable.
The verdict
Your pick: Microsoft Lumia 640 Dual SIM, ahead on Design & display, Camera and Battery & charging. Unless Connectivity decides it for you.
| Category | Lumia 640 Dual SIM | Lumia 550 |
|---|---|---|
| Design & display | 4.8 | 4.7 |
| Performance & hardware | 1.2 | 1.2 |
| Camera | 2.1 | 2.0 |
| Connectivity | 2.3 | 3.1 |
| Battery & charging | 1.4 | 0.8 |
Which one is for you?
Microsoft Lumia 640 Dual SIM, if you care about…
- Battery Capacity
- 2,500 mAh
- against 2,100 mAh
- SIM Configurations
- Dual SIM Dual Standby
- against Single Nano-SIM
- Usable Surface
- 67.6 %
- against 64.7 %
- Body Thickness
- 8.8 mm
- against 9.9 mm
Microsoft Lumia 550, if you care about…
- Bluetooth Version
- Bluetooth 4.1
- against Bluetooth 4.0
- Display Pixel Density
- 315 ppi
- against 294 ppi
- OS Version
- 10
- against 8.1
- Cellular Technologies
- GSM, HSPA, LTE, 4G
- against GSM, HSPA
Specification comparison
Battery
| Specification | Lumia 640 Dual SIM | Lumia 550 |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 2,500 mAh Best value | 2,100 mAh |
| Battery Type | Li-Ion | Li-Ion |
| Fast Charge Power | — | — |
| Battery Features | — | Battery Level Indicator, Rechargeable, Removable |
| Battery Endurance | — | — |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | 27.5 h Best value | 16 h |
| Standby time | 840 h Best value | 672 h |
| Music playback time | — | 60 h |
Design
| Specification | Lumia 640 Dual SIM | Lumia 550 |
|---|---|---|
| Body Colors | Cyan, Orange, White, Black | Black, White |
| Body Thickness | 8.8 mm Best value | 9.9 mm |
| Body Width | 72.2 mm | 67.8 mm |
| Body Height | 141.3 mm | 136.1 mm |
| Weight | 145 g | 141.9 g Best value |
| Usable Surface | 67.6 % Best value | 64.7 % |
| Body Materials | — | — |
| Resistance Features | — | — |
| Waterproof Depth | — | — |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | — | — |
| QWERTY keyboard | — | — |
Performance
| Specification | Lumia 640 Dual SIM | Lumia 550 |
|---|---|---|
| Processor Model | Qualcomm MSM8926 Snapdragon 400 | Qualcomm MSM8909 Snapdragon 210 |
| Processor Process Size | 28 nm | 28 nm |
| Graphics GPU | Qualcomm Adreno 305 | Qualcomm Adreno 304 |
| Storage Type | eMMC 4.5 | eMMC 4.5 |
| Maximum CPU Clock | 1.2 GHz Best value | 1.1 GHz |
| Maximum Storage Capacity | 8 GB | 8 GB |
| AnTuTu Score | — | — |
| Geekbench 6 Single-Core | — | — |
| Geekbench 6 Multi-Core | — | — |
| CPU Description | Quad-core 1.2 GHz Cortex-A7 | Quad-core 1.1 GHz Cortex-A7 |
| Processor Type | Quad-Core | Quad-Core |
| 64-Bit Processor | — | No |
| RAM Capacity | 1 GB | 1 GB |
| RAM Type | — | — |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | Lumia 640 Dual SIM | Lumia 550 |
|---|---|---|
| Fingerprint Sensor Placement | — | — |
Display
| Specification | Lumia 640 Dual SIM | Lumia 550 |
|---|---|---|
| Display Aspect Ratio | 16:9 | 16:9 |
| Peak Display Brightness | — | — |
| Display Technology | IPS LCD | IPS LCD |
| Display Diagonal | 5″ Best value | 4.7″ |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,280 px | 1,280 px |
| Display Pixel Density | 294 ppi | 315 ppi Best value |
| Display Refresh Rate | — | — |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | 1,034 :1 | — |
| Display Features | ClearBlack Display, Gorilla Glass 3 | Touchscreen |
| Integrated Projector | No | No |
| Projector Brightness | — | — |
| Projector Horizontal Resolution | — | — |
| Projector Vertical Resolution | — | — |
| Cover display diagonal | — | — |
| Cover display refresh rate | — | — |
| Cover display peak brightness | — | — |
| Display colors | — | — |
Sensor
| Specification | Lumia 640 Dual SIM | Lumia 550 |
|---|---|---|
| Sensor Features | Accelerometer, Proximity Sensor, Compass | Accelerometer, Proximity Sensor |
Software
| Specification | Lumia 640 Dual SIM | Lumia 550 |
|---|---|---|
| Operating System | Windows Phone 8.1 | Windows 10 Mobile |
| OS Family | Windows Phone | Windows Phone |
| OS Version | 8.1 | 10 Best value |
| OS Update Support | — | — |
| Direct OS Updates | — | No |
| Google Services | — | — |
| Web browser | — | — |
| Java (J2ME) | — | — |
Connectivity
| Specification | Lumia 640 Dual SIM | Lumia 550 |
|---|---|---|
| SIM Configurations | Dual SIM Dual Standby Best value | Single Nano-SIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B7, 4G LTE B8, 4G LTE B20 |
| Cellular Technologies | GSM, HSPA | GSM, HSPA, LTE, 4G Best value |
| Wi-Fi Standards | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi 4 (802.11n) |
| Wi-Fi Features | DLNA, Wi-Fi Hotspot | Wi-Fi Hotspot |
| Bluetooth Version | Bluetooth 4.0 | Bluetooth 4.1 Best value |
| Bluetooth Profiles | A2DP | A2DP |
| Navigation Systems | GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, USB Charging | 3.5 mm Audio Jack, FM Radio, microUSB |
| USB Version | USB 2.0 | USB 2.0 |
| SAR American Head | — | — |
| SAR American Body | — | — |
| SAR (EU) head | — | — |
| SAR (EU) body | — | — |
| Messaging | — | — |
Audio
| Specification | Lumia 640 Dual SIM | Lumia 550 |
|---|---|---|
| Microphone Count | — | 1 |
| Audio Features | A2DP, Loudspeaker | A2DP, Loudspeaker |
| Alert types | — | — |
Technical
| Specification | Lumia 640 Dual SIM | Lumia 550 |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | Lumia 640 Dual SIM | Lumia 550 |
|---|---|---|
| Built-in functions | — | — |
