O2
Side-by-side technical data
O2 XDA Serra vs O2 XDA Comet
Compare up to four phones using typed, normalized technical data. Measurements stay numeric, capabilities stay boolean, and options stay comparable.
The verdict
Neither runs away with it: each wins something.
Which one is for you?
O2 XDA Serra, if you care about…
- RAM Capacity
- 288 MB
- against 64 MB
- Bluetooth Version
- Bluetooth 2.0
- against Bluetooth 1.2
- Display Pixel Density
- 286 ppi
- against 148 ppi
- Usable Surface
- 46.7 %
- against 36.7 %
O2 XDA Comet, if you care about…
- Maximum Storage Capacity
- 1 GB
- against 512 MB
- Weight
- 145 g
- against 165 g
Specification comparison
Battery
| Specification | XDA Serra | XDA Comet |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 1,340 mAh | — |
| Battery Type | Li-Ion | Li-Ion |
| Fast Charge Power | — | — |
| Battery Features | — | — |
| Battery Endurance | — | — |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | 8 h Best value | 6 h |
| Standby time | 406 h Best value | 200 h |
| Music playback time | — | — |
Design
| Specification | XDA Serra | XDA Comet |
|---|---|---|
| Body Colors | Black | Silver |
| Body Thickness | 18.1 mm Best value | 19 mm |
| Body Width | 51 mm | 58 mm |
| Body Height | 102 mm | 106 mm |
| Weight | 165 g | 145 g Best value |
| Usable Surface | 46.7 % Best value | 36.7 % |
| Body Materials | — | — |
| Resistance Features | — | — |
| Waterproof Depth | — | — |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | — | — |
| QWERTY keyboard | Yes | — |
Performance
| Specification | XDA Serra | XDA Comet |
|---|---|---|
| Processor Model | Qualcomm MSM7201A | — |
| Processor Process Size | — | — |
| Graphics GPU | Qualcomm Adreno 130 | — |
| Storage Type | — | — |
| Maximum CPU Clock | 0.528 GHz | 0.62 GHz Best value |
| Maximum Storage Capacity | 512 MB | 1 GB Best value |
| AnTuTu Score | — | — |
| Geekbench 6 Single-Core | — | — |
| Geekbench 6 Multi-Core | — | — |
| CPU Description | 528 MHz ARM 11 | Intel XScale PXA 270 620 MHz |
| Processor Type | — | — |
| 64-Bit Processor | — | — |
| RAM Capacity | 288 MB Best value | 64 MB |
| RAM Type | — | — |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | XDA Serra | XDA Comet |
|---|---|---|
| Fingerprint Sensor Placement | — | — |
Display
| Specification | XDA Serra | XDA Comet |
|---|---|---|
| Display Aspect Ratio | 4:3 | 4:3 |
| Peak Display Brightness | — | — |
| Display Technology | TFT LCD | TFT LCD |
| Display Diagonal | 2.8″ Best value | 2.7″ |
| Display Horizontal Resolution | 480 px Best value | 240 px |
| Display Vertical Resolution | 640 px Best value | 320 px |
| Display Pixel Density | 286 ppi Best value | 148 ppi |
| Display Refresh Rate | — | — |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | Touchscreen | Resistive Touchscreen, Touchscreen |
| Integrated Projector | No | No |
| Projector Brightness | — | — |
| Projector Horizontal Resolution | — | — |
| Projector Vertical Resolution | — | — |
| Cover display diagonal | — | — |
| Cover display refresh rate | — | — |
| Cover display peak brightness | — | — |
| Display colors | 65K colors | 65K colors |
Sensor
| Specification | XDA Serra | XDA Comet |
|---|---|---|
| Sensor Features | Accelerometer | — |
Software
| Specification | XDA Serra | XDA Comet |
|---|---|---|
| Operating System | Windows Mobile 6.1 | Windows Mobile 6.0 |
| OS Family | Windows Mobile | Windows Mobile |
| OS Version | 6.1 Best value | 6 |
| OS Update Support | — | — |
| Direct OS Updates | — | — |
| Google Services | — | — |
| Web browser | WAP 2.0/xHTML, HTML | WAP 2.0/xHTML, HTML |
| Java (J2ME) | — | — |
Connectivity
| Specification | XDA Serra | XDA Comet |
|---|---|---|
| SIM Configurations | Mini-SIM | Mini-SIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS 2100 | 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS 1900, 3G UMTS 2100 |
| Cellular Technologies | GSM, HSPA | GSM, HSPA |
| Wi-Fi Standards | Wi-Fi 802.11b/g | Wi-Fi 802.11b/g |
| Wi-Fi Features | Wi-Fi 802.11b/g | Wi-Fi 802.11b/g |
| Bluetooth Version | Bluetooth 2.0 Best value | Bluetooth 1.2 |
| Bluetooth Profiles | A2DP | — |
| Navigation Systems | GPS, A-GPS | — |
| Connectivity Features | MP3 Player, MP4/3GP Player, FM Radio, miniUSB | MP3 Player, Infrared, FM Radio, miniUSB |
| USB Version | miniUSB | miniUSB |
| SAR American Head | — | — |
| SAR American Body | — | — |
| SAR (EU) head | — | — |
| SAR (EU) body | — | — |
| Messaging | — | — |
Audio
| Specification | XDA Serra | XDA Comet |
|---|---|---|
| Microphone Count | — | — |
| Audio Features | A2DP, Loudspeaker | Loudspeaker |
| Alert types | — | Vibration, Downloadable ringtones, Polyphonic ringtones, MP3 ringtones |
Technical
| Specification | XDA Serra | XDA Comet |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | XDA Serra | XDA Comet |
|---|---|---|
| Built-in functions | Handwriting recognition, MP3 player, Audio/video player, Voice memo, Predictive text input | Handwriting recognition, Voice memo, MP3 player |
