Category Breakdown
Huawei Impulse 4G
Samsung Epic 4G
Performance
60.965.6
Camera
15.415.4
Display
16.978.3
Battery
15.215.2
Build
0.215.8
Connectivity
26.225.3
Audio
8.98.9
Overall
17.127.7
Summary
- The Huawei Impulse 4G features a 3.8-inch TFT display with a resolution of 480 x 800 pixels, while the Samsung Epic 4G has a larger 4.0-inch Super AMOLED display with the same resolution, offering slightly better color reproduction.
- In terms of performance, the Impulse is powered by an 800 MHz Scorpion CPU, whereas the Epic utilizes a 1.0 GHz Cortex-A8, providing superior processing capabilities.
- Both devices have a 5 MP rear camera with similar video recording capabilities at 720p@30fps, but neither has optical image stabilization.
- They share a 1500 mAh battery capacity, but the Epic is heavier at 155g compared to the Impulse's 130g.
- Both run Android 2.2, but the Epic originally launched with Android 2.1 and is upgradable to 2.2, providing a slightly better software experience.
Side-by-side Specification Comparison
Huawei Impulse 4G
Samsung Epic 4G
General
Release Date
2011
2010
Announced
2011
2010
Description
For AT&T
Also known as Samsung Galaxy S ProFor Sprint
Display
Size
3.8"
4"
Type
TFT
Super AMOLED
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
HDR Support
✗
✗
Protection
N/A
Corning Gorilla Glass
Performance
Chipset
Qualcomm MSM7230
Hummingbird
CPU
800 MHz Scorpion
1.0 GHz Cortex-A8
GPU
Adreno 205
PowerVR SGX540
Memory
512MB RAM
512MB 512MB RAM
Expandable Storage
✗
✗
Card Slot
microSDHC (dedicated slot)
microSDHC (dedicated slot)
Camera
Main Camera
5 MP, AF
5 MP, AF
Main Camera Features
LED flash
LED flash
Front Camera
N/A
VGA
Front Camera Features
N/A
N/A
Video Recording
720p@30fps
720p@30fps
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
1500 mAh
1500 mAh
Battery Details
Removable Li-Ion 1500 mAh battery
Removable Li-Ion 1500 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
120 x 65 x 11.6 mm (4.72 x 2.56 x 0.46 in)
124 x 65 x 14 mm (4.88 x 2.56 x 0.55 in)
Weight
130 g
155 g
Materials
N/A
N/A
Colors
Black
Black
Foldable
✗
✗
SAR
N/A
0.68 W/kg (head) 0.99 W/kg (body)
Connectivity
SIM
Mini-SIM
Mini-SIM
Network
GSM / HSPA
CDMA / HSPA / EVDO
Network Speed
HSPA 14.4/5.76 Mbps
HSPA, EV-DO Rev. A 3.1 Mbps
5G
✗
✗
4G
✗
✗
WiFi
Wi-Fi 802.11 b/g/n
Wi-Fi 802.11 b/g/n; WiMAX, hotspot (Android 2.2)
Bluetooth
2.1, A2DP, EDR
2.1, A2DP
NFC
✗
✗
USB
microUSB 2.0
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, A-GPS
GPS, A-GPS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 2.2 (Froyo)
Android 2.1 (Eclair), upgradable to 2.2 (Froyo)
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, proximity, compass
Accelerometer, proximity, compass

