O2 XDA II
#11160
Siemens SX45
#11475Category Breakdown
O2 XDA II
Siemens SX45
Performance
30.720.1
Camera
0.02.5
Display
9.59.5
Battery
12.316.1
Build
0.20.2
Connectivity
8.51.0
Audio
8.90.0
Overall
6.85.4
Summary
- The O2 XDA II features a more compact build at 130 x 70 x 19 mm and weighs 190g, compared to the bulkier Siemens SX45, which measures 134 x 87 x 26 mm and weighs 330g.
- Both devices have a 3.5" TFT resistive touchscreen with a resolution of 240 x 320 pixels, but the O2's higher RAM of 128MB and a 400 MHz CPU provide superior performance over the Siemens' 32MB RAM and 150 MHz CPU.
- Neither device has a functional camera, but the O2 XDA II has a slightly smaller battery capacity of 1200mAh compared to the Siemens SX45's 1550mAh.
- Both run on Microsoft operating systems, with the O2 using Windows Mobile 2003 and the Siemens utilizing Windows CE 3.0, resulting in a more modern software experience on the O2.
Side-by-side Specification Comparison
O2 XDA II
Siemens SX45
General
Release Date
2003
2001
Announced
2003
2001
Description
Produced by HTC. Functionally identical toQtek 2020,i-mate Pocket PC, T-Mobile MDA II and Orange SPV M1000.
PDA + mobile phone
Display
Size
3.5"
N/A
Type
TFT resistive touchscreen, 65K colors
TFT resistive touchscreen, 65K colors
Resolution
240 x 320 pixels, 4:3 ratio (~114 ppi density)
240 x 320 pixels, 4:3 ratio
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
64-bit NEC VR4122 150 MHz
GPU
N/A
N/A
Memory
128MB RAM, 64MB ROM
32MB
Expandable Storage
✗
✗
Card Slot
MMC/SD
No
Camera
Main Camera
VGA
N/A
Main Camera Features
N/A
N/A
Front Camera
N/A
N/A
Front Camera Features
N/A
N/A
Video Recording
No
N/A
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
1200 mAh
1550 mAh
Battery Details
Removable Li-Po 1200 mAh battery
Removable Li-Ion 1550 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
130 x 70 x 19 mm (5.12 x 2.76 x 0.75 in)
134 x 87 x 26 mm, 309 cc (5.28 x 3.43 x 1.02 in)
Weight
190 g
330 g
Materials
N/A
N/A
Colors
N/A
N/A
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
No
Bluetooth
Yes
No
NFC
✗
✗
USB
Proprietary
N/A
IR Blaster
✗
✗
Headphone Jack
✗
✗
Radio
✗
✗
Positioning
No
No
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
No
Audio Jack
No
No
Software & Security
Operating System
Microsoft Windows Mobile 2003 for PocketPC Phone Edition
Microsoft Windows CE 3.0 for PocketPC
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
N/A
N/A