Siemens
Side-by-side technical data
Siemens AL21 vs Siemens SFG75
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?
Siemens AL21, if you care about…
- Weight
- 78 g
- against 110 g
- Body Thickness
- 19.2 mm
- against 24 mm
- Talk time
- 5 h
- against 3 h
Siemens SFG75, if you care about…
- Battery Capacity
- 840 mAh
- against 600 mAh
- RAM Capacity
- 32 MB
- against 2 MB
- Maximum Storage Capacity
- 32 MB
- against 2 MB
- Standby time
- 250 h
- against 220 h
Specification comparison
Battery
| Specification | AL21 | SFG75 |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 600 mAh | 840 mAh Best value |
| Battery Type | Li-Ion | Li-Ion |
| Fast Charge Power | — | — |
| Battery Features | — | — |
| Battery Endurance | — | — |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | 5 h Best value | 3 h |
| Standby time | 220 h | 250 h Best value |
| Music playback time | — | — |
Design
| Specification | AL21 | SFG75 |
|---|---|---|
| Body Colors | Red, Black | Silver, Black |
| Body Thickness | 19.2 mm Best value | 24 mm |
| Body Width | 45.8 mm | 45 mm |
| Body Height | 86.8 mm | 90 mm |
| Weight | 78 g Best value | 110 g |
| Usable Surface | — | 31.1 % |
| Body Materials | — | — |
| Resistance Features | — | — |
| Waterproof Depth | — | — |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | 19.2 mm | — |
| QWERTY keyboard | — | — |
Performance
| Specification | AL21 | SFG75 |
|---|---|---|
| Processor Model | — | — |
| Processor Process Size | — | — |
| Graphics GPU | — | — |
| Storage Type | — | — |
| Maximum CPU Clock | — | — |
| Maximum Storage Capacity | 2 MB | 32 MB Best value |
| AnTuTu Score | — | — |
| Geekbench 6 Single-Core | — | — |
| Geekbench 6 Multi-Core | — | — |
| CPU Description | — | — |
| Processor Type | — | — |
| 64-Bit Processor | — | — |
| RAM Capacity | 2 MB | 32 MB Best value |
| RAM Type | — | — |
| Expandable Storage | No | Yes Best value |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | AL21 | SFG75 |
|---|---|---|
| Fingerprint Sensor Placement | — | — |
Display
| Specification | AL21 | SFG75 |
|---|---|---|
| Display Aspect Ratio | 1:1 | 4:5 |
| Peak Display Brightness | — | — |
| Display Technology | TFT LCD | TFT LCD |
| Display Diagonal | — | 2″ |
| Display Horizontal Resolution | 130 px | 176 px Best value |
| Display Vertical Resolution | 130 px | 220 px Best value |
| Display Pixel Density | — | 141 ppi |
| Display Refresh Rate | — | — |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | — | — |
| 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 | 256K colors Best value |
Sensor
| Specification | AL21 | SFG75 |
|---|---|---|
| Sensor Features | — | — |
Software
| Specification | AL21 | SFG75 |
|---|---|---|
| Operating System | — | — |
| OS Family | — | — |
| OS Version | — | — |
| OS Update Support | — | — |
| Direct OS Updates | — | — |
| Google Services | — | — |
| Web browser | WAP 1.x | WAP 2.0/xHTML Best value |
| Java (J2ME) | Yes | Yes |
Connectivity
| Specification | AL21 | SFG75 |
|---|---|---|
| SIM Configurations | Mini-SIM | Mini-SIM |
| Cellular Bands | 2G GSM 900, 2G GSM 1800, 2G GSM 1900 | 2G GSM 900, 2G GSM 1800, 3G UMTS 2100 |
| Cellular Technologies | GSM, GPRS | GSM, UMTS Best value |
| Wi-Fi Standards | — | — |
| Wi-Fi Features | — | — |
| Bluetooth Version | — | — |
| Bluetooth Profiles | — | — |
| Navigation Systems | — | — |
| Connectivity Features | — | Video Calls, MP3 Player, MP4/3GP Player, Infrared |
| USB Version | Proprietary | Proprietary |
| SAR American Head | — | — |
| SAR American Body | — | — |
| SAR (EU) head | — | — |
| SAR (EU) body | — | — |
| Messaging | SMS, EMS, MMS | SMS, MMS, Email |
Audio
| Specification | AL21 | SFG75 |
|---|---|---|
| Microphone Count | — | — |
| Audio Features | Loudspeaker | — |
| Alert types | Vibration, Polyphonic ringtones | Vibration, Downloadable ringtones, Polyphonic ringtones, MP3 ringtones |
Technical
| Specification | AL21 | SFG75 |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | AL21 | SFG75 |
|---|---|---|
| Built-in functions | Predictive text input, Organizer | Downloadable wallpapers, Video telephony, MP3 player, MP4 player, Predictive text input, Organizer |
