Acer F900
#5126
Celkon A20
#6423Category Breakdown
Acer F900
Celkon A20
Performance
61.858.0
Camera
41.941.9
Display
64.364.3
Battery
43.543.5
Build
70.870.8
Overall
55.554.3
Summary
- The Acer F900, released in 2009, features a 3.8-inch TFT resistive touchscreen with a resolution of 480 x 800 pixels, while the Celkon A20, from 2013, has a slightly larger 4.0-inch TFT display with the same resolution but a lower pixel density.
- In terms of performance, the F900 is equipped with a 533 MHz CPU and 128MB RAM, whereas the A20 offers a dual-core 1.2 GHz processor and 256MB RAM, providing better multitasking capabilities.
- Both devices have a 3.15 MP rear camera, but the A20 supports video recording, unlike the F900.
- The F900 has a 1530 mAh battery, slightly larger than the A20's 1500 mAh, but both lack fast charging and wireless capabilities.
- The F900 runs on Microsoft Windows Mobile 6.1, while the A20 operates on Android 4.2.0, offering a more modern software experience.
Side-by-side Specification Comparison
Acer F900
Celkon A20
General
Release Date
2009
2013
Announced
2009
2013
Description
N/A
N/A
Display
Size
3.8"
4"
Type
TFT resistive touchscreen, 65K colors
TFT
Resolution
480 x 800 pixels, 5:3 ratio (~246 ppi density)
480 x 800 pixels, 5:3 ratio (~233 ppi density)
PPI
480
480
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
N/A
N/A
CPU
533 MHz Samsung S3C 6410
Dual-core 1.2 GHz
GPU
N/A
N/A
Memory
128MB RAM, 256MB ROM
256MB 512MB RAM
Expandable Storage
✗
✗
Card Slot
microSD (dedicated slot)
microSDHC (dedicated slot)
Camera
Main Camera
3.15 MP
3.15 MP
Main Camera Details
3.15 MP, AF
3.15 MP
Front Camera
N/A
N/A
Front Camera Details
N/A
VGA
Video Recording
480p
Yes
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
1530 mAh
1500 mAh
Battery Details
Removable Li-Ion 1530 mAh battery
Li-Ion 1500 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
117.5 x 63.5 x 15.8 mm (4.63 x 2.5 x 0.62 in)
N/A
Weight
150 g
N/A
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Black
Black
Foldable
✗
✗
Connectivity
SIM
Mini-SIM
Dual SIM (Mini-SIM)
Network
GSM / HSPA
GSM / HSPA
Network Speed
HSPA 7.2/2 Mbps
Yes, 384 kbps
5G
✗
✗
4G
✗
✗
WiFi
Wi-Fi 802.11 b/g
Wi-Fi 802.11 b/g/n
Bluetooth
2.0, A2DP
Yes
NFC
✗
✗
USB
miniUSB 2.0
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✗
✓
Radio
✗
✗
Positioning
GPS, SiRF Star III chipset
No
Software
Operating System
Microsoft Windows Mobile 6.1 Professional
Android 4.2.0 (Jelly Bean)
OS Version
Microsoft Windows Mobile 6.1 Professional
Android 4.2.0 (Jelly Bean)
Security
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer
Proximity, gyro
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
No
Yes