Celkon A21
#6718
HTC Dream
#7775Category Breakdown
Celkon A21
HTC Dream
Performance
65.941.6
Camera
39.639.6
Display
16.022.1
Battery
15.211.9
Build
0.214.9
Connectivity
25.317.6
Audio
8.98.9
Overall
22.517.4
Summary
- The Celkon A21 features a larger 4.0-inch TFT display compared to the HTC Dream's 3.2-inch screen, both with the same resolution but the A21 offers a lower pixel density.
- In terms of performance, the A21 is powered by a quad-core Mediatek MT6582 processor, while the HTC Dream runs on a single-core 528 MHz ARM 11, resulting in superior multitasking capabilities for the A21.
- Both devices have a 3.15 MP rear camera, but the HTC Dream includes autofocus, enhancing its photographic performance.
- The A21 has a slightly larger battery capacity at 1500 mAh versus the Dream's 1150 mAh, which may provide better longevity.
- The A21 runs on Android 4.2.2, offering a more updated software experience compared to the HTC Dream's Android 1.6.
- Lastly, the Celkon A21 is lighter at 115.3g compared to the HTC Dream's 158g, contributing to a more portable design.
Side-by-side Specification Comparison
Celkon A21
HTC Dream
General
Release Date
2014
2009
Announced
2014
2009
Description
N/A
N/A
Display
Size
4"
3.2"
Type
TFT
TFT, 65K colors
Resolution
320 x 480 pixels, 3:2 ratio (~144 ppi density)
320 x 480 pixels, 3:2 ratio (~180 ppi density)
PPI
320
320
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Mediatek MT6582 (28 nm)
Qualcomm MSM7201A
CPU
Quad-core 1.3 GHz Cortex-A7
528 MHz ARM 11
GPU
Mali-400MP2
Adreno 130
Memory
512MB 256MB RAM
192MB RAM, 256MB
Expandable Storage
✗
✗
Card Slot
microSDHC
microSD (dedicated slot)
Camera
Main Camera
3.15 MP
3.15 MP, AF
Main Camera Features
N/A
N/A
Front Camera
1.3 MP
N/A
Front Camera Features
N/A
N/A
Video Recording
Yes
Yes
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
1500 mAh
1150 mAh
Battery Details
Li-Ion 1500 mAh battery
Removable Li-Ion 1150 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
124.8 x 66.1 x 10.8 mm (4.91 x 2.60 x 0.43 in)
117.7 x 55.7 x 17.1 mm (4.63 x 2.19 x 0.67 in)
Weight
115.3 g
158 g
Materials
N/A
N/A
Colors
Black, Blue, Red
Black
Foldable
✗
✗
SAR
N/A
1.07 W/kg (head) 1.20 W/kg (body)
Connectivity
SIM
Dual SIM (Dual stand-by)
Mini-SIM
Network
GSM / HSPA
GSM / HSPA
Network Speed
HSPA
HSPA 7.2/2 Mbps
5G
✗
✗
4G
✗
✗
WiFi
Wi-Fi 802.11 b/g/n
Wi-Fi 802.11 b/g
Bluetooth
4.0, A2DP
2.0, A2DP (headset support only)
NFC
✗
✗
USB
microUSB
miniUSB
IR Blaster
✗
✗
Headphone Jack
✓
✗
Radio
✗
✗
Positioning
No
GPS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
No
Software & Security
Operating System
Android 4.2.2 (Jelly Bean)
Android 1.6 (Donut)
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer
Accelerometer, compass