Category Breakdown
Acer DX650
Samsung Array M390
Performance
5.134.3
Camera
0.039.6
Display
9.515.2
Battery
12.810.3
Build
0.215.5
Connectivity
11.98.3
Audio
8.98.9
Overall
4.516.0
Summary
- The Acer DX650 features a 2.8-inch TFT resistive touchscreen with a resolution of 240 x 320 pixels, while the Samsung Array M390 has a slightly smaller 2.4-inch TFT display with the same resolution but a higher pixel density of approximately 167 ppi.
- In terms of performance, the Acer is powered by a Samsung S3C 6410 CPU at 533 MHz, whereas the M390 uses a Qualcomm QSC 6155 CPU at 480 MHz, but the M390 has 40MB of RAM compared to the Acer's 0GB.
- Both devices have a 2 MP rear camera, but the M390 supports video recording, unlike the DX650.
- The Acer DX650 has a larger battery capacity of 1260 mAh compared to the M390's 1000 mAh.
- Software-wise, the DX650 runs on Microsoft Windows Mobile 6.1 Professional, while the M390's OS is unspecified.
- The DX650 lacks a headphone jack, whereas the M390 includes one.
Side-by-side Specification Comparison
Acer DX650
Samsung Array M390
General
Release Date
2009
2012
Announced
2009
2012
Description
N/A
For Sprint, Boost Mobile.Also known as Samsung Montage for Virgin Mobile
Display
Size
2.8"
2.4"
Type
TFT resistive touchscreen, 65K colors
TFT
Resolution
240 x 320 pixels, 4:3 ratio (~143 ppi density)
240 x 320 pixels, 4:3 ratio (~167 ppi density)
PPI
240
240
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
N/A
Qualcomm QSC 6155
CPU
Samsung S3C 6410 533 MHz
480 MHz
GPU
N/A
N/A
Memory
N/A
40MB 128MB RAM 256MB ROM
Expandable Storage
✗
✗
Card Slot
microSD (dedicated slot)
microSDHC (dedicated slot)
Camera
Main Camera
2 MP
2 MP
Main Camera Features
N/A
N/A
Front Camera
N/A
N/A
Front Camera Features
N/A
N/A
Video Recording
No
Yes
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
1260 mAh
1000 mAh
Battery Details
Removable Li-Ion 1260 mAh battery
Removable Li-Ion 1000 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
109.6 x 59 x 15.6 mm (4.31 x 2.32 x 0.61 in)
112 x 54 x 15 mm (4.41 x 2.13 x 0.59 in)
Weight
133 g
117 g
Materials
N/A
N/A
Colors
Black
Black, Black/Silver
Foldable
✗
✗
SAR
N/A
1.09 W/kg (head) 1.09 W/kg (body)
Connectivity
SIM
Mini-SIM
Mini-SIM
Network
GSM
CDMA
Network Speed
N/A
N/A
5G
✗
✗
4G
✗
✗
WiFi
Wi-Fi 802.11 b/g
No
Bluetooth
2.0, A2DP
3.0, A2DP
NFC
✗
✗
USB
miniUSB
Proprietary
IR Blaster
✗
✗
Headphone Jack
✗
✓
Radio
✗
✗
Positioning
GPS, SiRF Star III chipset
No
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
No
Yes
Software & Security
Operating System
Microsoft Windows Mobile 6.1 Professional
N/A
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer
N/A

