O2 XDA
#11043
Siemens SX66
#11273Category Breakdown
O2 XDA
Siemens SX66
Performance
25.531.3
Camera
2.52.5
Display
27.69.5
Battery
1.61.6
Build
0.20.2
Connectivity
1.811.9
Audio
8.98.9
Overall
7.66.4
Summary
- The O2 XDA and Siemens SX66 both feature a 3.5-inch TFT resistive touchscreen display with the same resolution and pixel density, but the SX66 supports 65K colors compared to the XDA's 4096 colors.
- In terms of performance, the SX66 has a more powerful Intel Xscale PXA272 CPU at 520 MHz and double the RAM at 128MB, enhancing its overall capability.
- Both devices lack a rear or selfie camera, offering no photographic functionality.
- The O2 XDA is slightly larger and heavier than the SX66, which is more compact and weighs 210g.
- Battery specifications are not provided for either device, and while the O2 XDA runs on Microsoft Windows PocketPC, the Siemens SX66 operates on Windows Mobile 2003 SE, potentially offering a more refined software experience.
- Connectivity options differ, with the SX66 supporting Wi-Fi and Bluetooth, while the XDA does not have any wireless capabilities.
Side-by-side Specification Comparison
O2 XDA
Siemens SX66
General
Release Date
2003
2004
Announced
2003
2004
Description
Produced by HTC. Functionally identical toQtek 1010.
N/A
Display
Size
3.5"
3.5"
Type
TFT resistive touchscreen, 4096 colors
TFT resistive touchscreen, 65K colors
Resolution
240 x 320 pixels, 4:3 ratio (~114 ppi density)
240 x 320 pixels, 4:3 ratio (~114 ppi density)
PPI
240
240
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
N/A
N/A
CPU
Intel Strong PXA263 400 MHz
Intel Xscale PXA272 520 MHz
GPU
N/A
N/A
Memory
64MB RAM, 32MB ROM
128MB RAM
Expandable Storage
✗
✗
Card Slot
MMC/SD
SDIO/MMC
Camera
Main Camera
N/A
N/A
Main Camera Features
N/A
N/A
Front Camera
N/A
N/A
Front Camera Features
N/A
N/A
Video Recording
N/A
N/A
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
N/A
N/A
Battery Details
Removable Li-Po battery
Removable Li-Ion battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
129 x 73 x 18 mm (5.08 x 2.87 x 0.71 in)
125 x 71 x 18 mm (4.92 x 2.80 x 0.71 in)
Weight
201 g
210 g
Materials
N/A
N/A
Colors
N/A
Silver
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Mini-SIM
Mini-SIM
Network
GSM
GSM
Network Speed
N/A
N/A
5G
✗
✗
4G
✗
✗
WiFi
No
Wi-Fi 802.11b
Bluetooth
No
Yes
NFC
✗
✗
USB
Proprietary
Proprietary
IR Blaster
✗
✗
Headphone Jack
✗
✗
Radio
✗
✗
Positioning
No
No
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
No
No
Software & Security
Operating System
Microsoft Windows PocketPC
Microsoft Windows Mobile 2003 SE PocketPC
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
N/A
N/A