Category Breakdown
Samsung R640 Character
Sonim XP3.20 Quest
Performance
5.35.3
Camera
2.52.5
Display
32.320.3
Battery
10.317.8
Build
16.70.2
Connectivity
15.37.9
Audio
8.98.9
Overall
9.86.7
Summary
- The Samsung R640 Character features a 2.8-inch TFT display with a resolution of 240 x 320 pixels, providing a higher pixel density than the Sonim XP3.20 Quest's 1.77-inch TFT display at 176 x 220 pixels.
- In terms of performance, both devices have 0GB of RAM, but the R640 has a more user-friendly interface due to its larger screen.
- The R640's camera is 1.3 MP, while the XP3.20 offers a slightly better 2 MP camera.
- Battery capacity is another differentiator, with the XP3.20 housing an 1850 mAh battery compared to the R640's 1000 mAh.
- The R640 is lighter at 120g versus the XP3.20's 170g, but the latter is built to be more rugged, which may appeal to users needing durability.
- Lastly, the R640 has a headphone jack, while the XP3.20 does not.
Side-by-side Specification Comparison
Samsung R640 Character
Sonim XP3.20 Quest
General
Release Date
2011
2009
Announced
2011
2009
Description
Also known as Samsung SCH-R640, Samsung Messager Touch II
N/A
Display
Size
2.8"
1.77"
Type
TFT, 256K colors
TFT, 65K colors
Resolution
240 x 320 pixels, 4:3 ratio
176 x 220 pixels (~159 ppi density)
PPI
240
176
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
Corning Gorilla Glass
Performance
Chipset
N/A
N/A
CPU
N/A
N/A
GPU
N/A
N/A
Memory
N/A
N/A
Expandable Storage
✗
✗
Card Slot
microSDHC (dedicated slot)
microSD (dedicated slot)
Camera
Main Camera
1.3 MP
2 MP
Main Camera Features
N/A
LED flash
Front Camera
N/A
N/A
Front Camera Features
N/A
N/A
Video Recording
N/A
N/A
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
1000 mAh
1850 mAh
Battery Details
Removable Li-Ion 1000 mAh battery
Removable Li-Ion 1850 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
107 x 55 x 15 mm (4.21 x 2.17 x 0.59 in)
119 x 56 x 25 mm (4.69 x 2.20 x 0.98 in)
Weight
120 g
170 g
Materials
N/A
N/A
Colors
Electric Blue
Black, Yellow
Foldable
✗
✗
SAR
0.50 W/kg (head) 0.97 W/kg (body)
N/A
Connectivity
SIM
Mini-SIM
Mini-SIM
Network
CDMA / CDMA2000
GSM
Network Speed
Yes, 384 kbps
N/A
5G
✗
✗
4G
✗
✗
WiFi
No
No
Bluetooth
2.1, A2DP, EDR
2.0
NFC
✗
✗
USB
microUSB 2.0
miniUSB
IR Blaster
✗
✗
Headphone Jack
✓
✗
Radio
✗
✗
Positioning
No
GPS, A-GPS; navigation software
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
No
Software & Security
Operating System
N/A
N/A
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
N/A
N/A

