T-Mobile
Side-by-side technical data
T-Mobile Sidekick 4G vs T-Mobile T Phone 3
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?
T-Mobile Sidekick 4G, if you care about…
- Weight
- 162 g
- against 218 g
T-Mobile T Phone 3, if you care about…
- Battery Capacity
- 5,000 mAh
- against 1,500 mAh
- RAM Capacity
- 6 GB
- against 512 MB
- Wi-Fi Standards
- Wi-Fi 802.11a/b/g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6E
- against Wi-Fi 802.11 b/g/n
- Display Technology
- IPS LCD
- against TFT LCD
Specification comparison
Battery
| Specification | Sidekick 4G | T Phone 3 |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 1,500 mAh | 5,000 mAh Best value |
| Battery Type | Li-Ion | — |
| Fast Charge Power | — | 25 W |
| Battery Features | — | Fast Charging, Battery Level Indicator, Rechargeable |
| Battery Endurance | — | 46 h |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | 6.5 h | — |
| Standby time | 456 h | — |
| Music playback time | — | — |
Design
| Specification | Sidekick 4G | T Phone 3 |
|---|---|---|
| Body Colors | Black, Magenta | Silver |
| Body Thickness | 15 mm | 9.3 mm Best value |
| Body Width | 61 mm | 77.1 mm |
| Body Height | 127 mm | 166.5 mm |
| Weight | 162 g Best value | 218 g |
| Usable Surface | 45 % | 81.2 % Best value |
| Body Materials | — | — |
| Resistance Features | — | IP54 |
| Waterproof Depth | — | — |
| Drop Resistance Class | — | A |
| Repairability Class | — | A |
| Foldable | No | No |
| Rugged Build | No | No |
| Drop Test Count | — | — |
| Unfolded thickness | — | — |
| QWERTY keyboard | Yes | — |
Performance
| Specification | Sidekick 4G | T Phone 3 |
|---|---|---|
| Processor Model | Samsung Hummingbird | Qualcomm Snapdragon 6 Gen 3 |
| Processor Process Size | — | 4 nm |
| Graphics GPU | PowerVR SGX540 | Qualcomm Adreno 710 |
| Storage Type | — | eMMC 5.1 |
| Maximum CPU Clock | 1 GHz | 2.4 GHz Best value |
| Maximum Storage Capacity | 1 GB | 128 GB Best value |
| AnTuTu Score | — | — |
| Geekbench 6 Single-Core | — | — |
| Geekbench 6 Multi-Core | — | — |
| CPU Description | 1.0 GHz Cortex-A8 | Octa-core CPU with 4 Cortex-A78 cores at 2.4 GHz and 4 Cortex-A55 cores at 1.8 GHz. |
| Processor Type | — | Octa-Core |
| 64-Bit Processor | — | Yes |
| RAM Capacity | 512 MB | 6 GB Best value |
| RAM Type | — | DDR5 |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | Sidekick 4G | T Phone 3 |
|---|---|---|
| Fingerprint Sensor Placement | — | Side |
Display
| Specification | Sidekick 4G | T Phone 3 |
|---|---|---|
| Display Aspect Ratio | 5:3 | 20:9 |
| Peak Display Brightness | — | — |
| Display Technology | TFT LCD | IPS LCD Best value |
| Display Diagonal | 3.5″ | 6.58″ Best value |
| Display Horizontal Resolution | 480 px | 1,080 px Best value |
| Display Vertical Resolution | 800 px | 2,408 px Best value |
| Display Pixel Density | 267 ppi | 401 ppi Best value |
| Display Refresh Rate | — | 120 Hz |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | — | Mohs Level 6, 120Hz, IPS LCD, Multi-Touch |
| 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 | — | — |
Sensor
| Specification | Sidekick 4G | T Phone 3 |
|---|---|---|
| Sensor Features | Accelerometer, Proximity Sensor | Accelerometer, Fingerprint Sensor |
Software
| Specification | Sidekick 4G | T Phone 3 |
|---|---|---|
| Operating System | Android 2.2 | Android 15 |
| OS Family | Android | Android |
| OS Version | 2.2 | 15 Best value |
| OS Update Support | — | — |
| Direct OS Updates | — | No |
| Google Services | — | — |
| Web browser | HTML | — |
| Java (J2ME) | — | — |
Connectivity
| Specification | Sidekick 4G | T Phone 3 |
|---|---|---|
| SIM Configurations | Single Mini-SIM | Nano-SIM + eSIM Best value |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS 1700 AWS, 3G UMTS 2100 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 2100, 4G LTE B2, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B12, 4G LTE B25, 4G LTE B26, LTE B28, 4G LTE B41, 4G LTE B48, 4G LTE B66, 4G LTE B71, 5G NR n1, 5G NR n3, 5G NR n7, 5G NR n28, 5G NR n38, 5G NR n75, 5G NR n78 |
| Cellular Technologies | GSM, HSPA | GSM, HSPA, LTE, 5G Best value |
| Wi-Fi Standards | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11a/b/g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6E Best value |
| Wi-Fi Features | DLNA, Wi-Fi Hotspot | Dual Band |
| Bluetooth Version | Bluetooth 3.0 | Bluetooth 5.1 Best value |
| Bluetooth Profiles | A2DP | A2DP, LE |
| Navigation Systems | GPS, A-GPS | GPS, GLONASS, BeiDou, Galileo Best value |
| Connectivity Features | 3.5 mm Audio Jack, microUSB | 3.5 mm Audio Jack, Satellite Connectivity, NFC, USB Type-C |
| USB Version | USB 2.0 | USB 2.0 |
| SAR American Head | 0.34 W/kg | — |
| SAR American Body | 0.96 W/kg | — |
| SAR (EU) head | — | — |
| SAR (EU) body | — | — |
| Messaging | — | — |
Audio
| Specification | Sidekick 4G | T Phone 3 |
|---|---|---|
| Microphone Count | — | — |
| Audio Features | A2DP, Loudspeaker | Stereo Speakers Best value |
| Alert types | — | — |
Technical
| Specification | Sidekick 4G | T Phone 3 |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | Sidekick 4G | T Phone 3 |
|---|---|---|
| Built-in functions | MP4 player, MP3 player, Organizer, Document editor, Document viewer, Voice memo, Predictive text input | — |
