Category Breakdown
Microsoft Lumia 640 Dual SIM
Samsung Galaxy Grand 3
Performance
43.651.8
Camera
19.119.1
Display
56.556.5
Battery
21.81.6
Build
0.20.2
Connectivity
37.046.9
Audio
8.98.9
Overall
25.230.9
Summary
- The Microsoft Lumia 640 Dual SIM features a 5.0-inch IPS LCD display with a resolution of 720 x 1280 pixels, while the Samsung Galaxy Grand 3 has a slightly larger 5.25-inch IPS LCD display with the same resolution.
- In terms of performance, the Lumia is powered by a Snapdragon 400 chipset with 1GB of RAM, whereas the Grand 3 utilizes a Snapdragon 410 chipset with 1.5GB of RAM, providing better multitasking capabilities.
- The camera on the Grand 3 is superior, offering a 13 MP rear camera compared to the Lumia's 8 MP, and it also has a 5 MP front camera versus the Lumia's 1 MP.
- Both devices have a similar battery capacity, with the Lumia at 2500 mAh and the Grand 3's capacity unspecified, but both lack fast charging and wireless charging.
- The Lumia runs on Microsoft Windows Phone 8.1, upgradable to Windows 10, while the Grand 3 operates on Android 4.4.4 (KitKat), providing different software experiences.
Side-by-side Specification Comparison
Microsoft Lumia 640 Dual SIM
Samsung Galaxy Grand 3
General
Release Date
2015
N/A
Announced
2015
N/A
Description
N/A
Unofficial preliminary specifications
Display
Size
5"
5.25"
Type
IPS LCD
IPS LCD
Resolution
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
720 x 1280 pixels, 16:9 ratio (~280 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
N/A
Performance
Chipset
Qualcomm MSM8926 Snapdragon 400 (28 nm)
Qualcomm MSM8916 Snapdragon 410 (28 nm)
CPU
Quad-core 1.2 GHz Cortex-A7
Quad-core 1.2 GHz Cortex-A53
GPU
Adreno 305
Adreno 306
Memory
8GB 1GB RAM
16GB 1.5GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
8 MP, f/2.2, 28mm (wide), 1/4.0", AF
13 MP, AF
Main Camera Features
LED flash
LED flash, HDR, panorama
Front Camera
1 MP
5 MP
Front Camera Features
N/A
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
720p
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
2500 mAh
N/A
Battery Details
Li-Ion 2500 mAh, removable
Li-Ion, removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in)
146 x 74.8 x 8 mm (5.75 x 2.94 x 0.31 in)
Weight
145 g
140 g
Materials
N/A
N/A
Colors
Glossy cyan, Orange, White, Matte black
Black, White
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Dual SIM (Micro-SIM, dual stand-by)
Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)
Network
GSM / HSPA
GSM / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps
HSPA, 42.2(21.1)/5.76 Mbps (region dependent)LTE Cat4 150/50 Mbps (G7205 only)
5G
✗
✗
4G
✗
✓
WiFi
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, hotspot
Bluetooth
4.0, A2DP
4.0, A2DP, EDR, LE
NFC
✗
✗
USB
microUSB 2.0
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
GPS, GLONASS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
Android 4.4.4 (KitKat)
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, proximity, compass
Accelerometer, proximity

