Category Breakdown
Icemobile Hydro
O2 X4
Performance
5.35.3
Camera
39.639.6
Display
14.031.4
Battery
3.41.6
Build
0.20.2
Connectivity
10.88.2
Audio
8.90.0
Overall
10.19.6
Summary
- The Icemobile Hydro features a compact build with dimensions of 114 x 54 x 11.8 mm and weighs 85g, while the O2 X4 is bulkier at 89.9 x 45.1 x 24 mm and 116g.
- The Hydro has a 2.0-inch TFT display with a resolution of 144 x 176 pixels, offering a pixel density of approximately 114 ppi, compared to the X4's smaller display at 176 x 220 pixels and 176 ppi.
- Both devices have a 1.3 MP rear camera capable of video recording, but neither has a front camera.
- The Hydro is equipped with a 500 mAh battery, whereas the X4 has no specified capacity.
- In terms of software experience, both devices lack advanced features and modern connectivity options, with the Hydro supporting Bluetooth 2.0 and the X4 offering proprietary USB connectivity.
Side-by-side Specification Comparison
Icemobile Hydro
O2 X4
General
Release Date
2013
2004
Announced
2013
2004
Description
N/A
N/A
Display
Size
2"
N/A
Type
TFT
TFT, 256K colors
Resolution
144 x 176 pixels (~114 ppi density)
176 x 220 pixels
PPI
144
176
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
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)
miniSD, 32 MB included
Camera
Main Camera
1.3 MP
1.3 MP
Main Camera Features
N/A
LED flash
Front Camera
N/A
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
500 mAh
N/A
Battery Details
Li-Ion 500 mAh, removable
Removable Li-Ion battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
114 x 54 x 11.8 mm (4.49 x 2.13 x 0.46 in)
89.9 x 45.1 x 24 mm (3.54 x 1.78 x 0.94 in)
Weight
85 g
116 g
Materials
N/A
N/A
Colors
Black, White, Blue
N/A
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Yes
Mini-SIM
Network
GSM
GSM / UMTS
Network Speed
N/A
Yes, 384 kbps
5G
✗
✗
4G
✗
✗
WiFi
No
No
Bluetooth
2.0
No
NFC
✗
✗
USB
microUSB 2.0
Proprietary
IR Blaster
✗
✗
Headphone Jack
✗
✗
Radio
✗
✗
Positioning
No
No
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
No
Audio Jack
No
No
Software & Security
Operating System
N/A
N/A
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
N/A
N/A

