T-Mobile
Side-by-side technical data
T-Mobile Sidekick LX 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 LX, 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 1,540 mAh
- RAM Capacity
- 6 GB
- against 64 MB
- Display Technology
- IPS LCD
- against TFT LCD
- Bluetooth Version
- Bluetooth 5.1
- against Bluetooth 2.0
Specification comparison
Battery
| Specification | Sidekick LX | T Phone 3 |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 1,540 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 | 6.8333 h | — |
| Standby time | 96 h | — |
| Music playback time | — | — |
Design
| Specification | Sidekick LX | T Phone 3 |
|---|---|---|
| Body Colors | Black | Silver |
| Body Thickness | 22 mm | 9.3 mm Best value |
| Body Width | 60 mm | 77.1 mm |
| Body Height | 129.5 mm | 166.5 mm |
| Weight | 162 g Best value | 218 g |
| Usable Surface | 33 % | 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 LX | T Phone 3 |
|---|---|---|
| Processor Model | — | Qualcomm Snapdragon 6 Gen 3 |
| Processor Process Size | — | 4 nm |
| Graphics GPU | — | Qualcomm Adreno 710 |
| Storage Type | — | eMMC 5.1 |
| Maximum CPU Clock | — | 2.4 GHz |
| Maximum Storage Capacity | 64 MB | 128 GB Best value |
| AnTuTu Score | — | — |
| Geekbench 6 Single-Core | — | — |
| Geekbench 6 Multi-Core | — | — |
| CPU Description | — | 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 | 64 MB | 6 GB Best value |
| RAM Type | — | DDR5 |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | — | — |
Sensors
| Specification | Sidekick LX | T Phone 3 |
|---|---|---|
| Fingerprint Sensor Placement | — | Side |
Display
| Specification | Sidekick LX | T Phone 3 |
|---|---|---|
| Display Aspect Ratio | 5:3 | 20:9 |
| Peak Display Brightness | — | — |
| Display Technology | TFT LCD | IPS LCD Best value |
| Display Diagonal | 3″ | 6.58″ Best value |
| Display Horizontal Resolution | 240 px | 1,080 px Best value |
| Display Vertical Resolution | 400 px | 2,408 px Best value |
| Display Pixel Density | 155 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 | 65K colors | — |
Sensor
| Specification | Sidekick LX | T Phone 3 |
|---|---|---|
| Sensor Features | — | Accelerometer, Fingerprint Sensor |
Software
| Specification | Sidekick LX | T Phone 3 |
|---|---|---|
| Operating System | Danger OS | Android 15 |
| OS Family | Proprietary OS | Android |
| OS Version | — | 15 |
| OS Update Support | — | — |
| Direct OS Updates | — | No |
| Google Services | — | — |
| Web browser | WAP 2.0/xHTML, HTML | — |
| Java (J2ME) | — | — |
Connectivity
| Specification | Sidekick LX | T Phone 3 |
|---|---|---|
| SIM Configurations | Mini-SIM | Nano-SIM + eSIM Best value |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900 | 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, GPRS, EDGE | GSM, HSPA, LTE, 5G Best value |
| Wi-Fi Standards | — | Wi-Fi 802.11a/b/g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6E |
| Wi-Fi Features | — | Dual Band |
| Bluetooth Version | Bluetooth 2.0 | Bluetooth 5.1 Best value |
| Bluetooth Profiles | — | A2DP, LE |
| Navigation Systems | — | GPS, GLONASS, BeiDou, Galileo |
| Connectivity Features | MP3 Player, MP4/3GP Player | 3.5 mm Audio Jack, Satellite Connectivity, NFC, USB Type-C |
| USB Version | Proprietary | USB 2.0 |
| SAR American Head | 0.4 W/kg | — |
| SAR American Body | 0.46 W/kg | — |
| SAR (EU) head | — | — |
| SAR (EU) body | — | — |
| Messaging | — | — |
Audio
| Specification | Sidekick LX | T Phone 3 |
|---|---|---|
| Microphone Count | — | — |
| Audio Features | Loudspeaker | Stereo Speakers Best value |
| Alert types | — | — |
Technical
| Specification | Sidekick LX | T Phone 3 |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | Sidekick LX | T Phone 3 |
|---|---|---|
| Built-in functions | MP3 player, MP4 player, Voice memo | — |
