Side-by-side technical data
Cat S31 vs Cat B40
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?
Cat S31, if you care about…
- Battery Capacity
- 4,000 mAh
- against 1,800 mAh
- RAM Capacity
- 2 GB
- against 128 MB
- Maximum Storage Capacity
- 16 GB
- against 64 MB
- Display Pixel Density
- 312 ppi
- against 167 ppi
Cat B40, if you care about…
- Bluetooth Version
- Bluetooth 5.0
- against Bluetooth 4.1
- Weight
- 157 g
- against 200 g
- Resistance Features
- IP69, MIL-STD-810H, Drop Resistant Up to 1.8 m
- against IP68, MIL-STD-810G, Drop Resistant Up to 1.8 m
- Rugged Build
- Yes
- against No
Specification comparison
Battery
| Specification | S31 | B40 |
|---|---|---|
| Battery Efficiency Rating | — | — |
| Battery Capacity | 4,000 mAh Best value | 1,800 mAh |
| Battery Type | Li-Ion | Li-Ion |
| Fast Charge Power | — | — |
| Battery Features | Battery Level Indicator, Rechargeable | Removable |
| Battery Endurance | — | — |
| Wireless charging power | — | — |
| Charge cycles | — | — |
| Talk time | — | — |
| Standby time | — | — |
| Music playback time | — | — |
Design
| Specification | S31 | B40 |
|---|---|---|
| Body Colors | Black | Black |
| Body Thickness | 12.6 mm Best value | 18 mm |
| Body Width | 74.4 mm | 62 mm |
| Body Height | 146 mm | 145 mm |
| Weight | 200 g | 157 g Best value |
| Usable Surface | 56.1 % Best value | 19.8 % |
| Body Materials | — | — |
| Resistance Features | IP68, MIL-STD-810G, Drop Resistant Up to 1.8 m | IP69, MIL-STD-810H, Drop Resistant Up to 1.8 m Best value |
| Waterproof Depth | 1.2 m | 1.2 m |
| Drop Resistance Class | — | — |
| Repairability Class | — | — |
| Foldable | No | No |
| Rugged Build | No | Yes Best value |
| Drop Test Count | — | — |
| Unfolded thickness | — | — |
| QWERTY keyboard | — | — |
Performance
| Specification | S31 | B40 |
|---|---|---|
| Processor Model | Qualcomm Snapdragon 210 | Unisoc T117 |
| Processor Process Size | 28 nm | — |
| Graphics GPU | Qualcomm Adreno 304 | — |
| Storage Type | eMMC 4.5 | — |
| Maximum CPU Clock | 1.3 GHz | — |
| Maximum Storage Capacity | 16 GB Best value | 64 MB |
| AnTuTu Score | 21,311 | — |
| Geekbench 6 Single-Core | — | — |
| Geekbench 6 Multi-Core | — | — |
| CPU Description | Quad-core 1.3 GHz Cortex-A7 | — |
| Processor Type | Quad-Core | Quad-Core |
| 64-Bit Processor | Yes | — |
| RAM Capacity | 2 GB Best value | 128 MB |
| RAM Type | — | — |
| Expandable Storage | Yes | Yes |
| AnTuTu version | — | — |
| 3DMark Wild Life Extreme | — | — |
| Maximum memory card | 64 GB | — |
Sensors
| Specification | S31 | B40 |
|---|---|---|
| Fingerprint Sensor Placement | — | — |
Display
| Specification | S31 | B40 |
|---|---|---|
| Display Aspect Ratio | 16:9 | 4:3 |
| Peak Display Brightness | — | — |
| Display Technology | TFT LCD | TFT LCD |
| Display Diagonal | 4.7″ Best value | 2.4″ |
| Display Horizontal Resolution | 720 px Best value | 240 px |
| Display Vertical Resolution | 1,280 px Best value | 320 px |
| Display Pixel Density | 312 ppi Best value | 167 ppi |
| Display Refresh Rate | — | — |
| Touch Sampling Rate | — | — |
| Display Contrast Ratio | — | — |
| Display Features | TFT LCD, Gorilla Glass 3, Touchscreen | TFT LCD |
| 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 | S31 | B40 |
|---|---|---|
| Sensor Features | Accelerometer, Proximity Sensor, Compass, Gyroscope | Accelerometer |
Software
| Specification | S31 | B40 |
|---|---|---|
| Operating System | Android 7 | — |
| OS Family | Android | Proprietary OS |
| OS Version | 7 | — |
| OS Update Support | — | — |
| Direct OS Updates | No | — |
| Google Services | — | — |
| Web browser | — | — |
| Java (J2ME) | — | — |
Connectivity
| Specification | S31 | B40 |
|---|---|---|
| SIM Configurations | Dual Nano-SIM Best value | Single Nano-SIM |
| Cellular Bands | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B5, 3G UMTS B8, 3G UMTS B2, 3G UMTS B1, 4G LTE B1, 4G LTE B3, 4G LTE B7, 4G LTE B8, 4G LTE B20, LTE B28 |
| Cellular Technologies | GSM, HSPA, LTE, 4G | GSM, HSPA, LTE |
| Wi-Fi Standards | Wi-Fi 802.11 b/g/n, Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n) | — |
| Wi-Fi Features | Wi-Fi 802.11 b/g/n | — |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.0 Best value |
| Bluetooth Profiles | A2DP, LE | A2DP, LE |
| Navigation Systems | GPS, GLONASS, BeiDou | — |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, microUSB, USB OTG, USB Charging | 3.5 mm Audio Jack, FM Radio, USB Type-C, USB 2.0, USB Charging |
| USB Version | microUSB | USB 2.0 |
| SAR American Head | 1.14 W/kg | — |
| SAR American Body | 1.19 W/kg | — |
| SAR (EU) head | — | — |
| SAR (EU) body | — | — |
| Messaging | — | — |
Audio
| Specification | S31 | B40 |
|---|---|---|
| Microphone Count | 1 | 1 |
| Audio Features | Loudspeaker, Stereo Speakers, A2DP, LE Best value | A2DP, LE, Loudspeaker |
| Alert types | — | — |
Technical
| Specification | S31 | B40 |
|---|---|---|
| EAN / GTIN | — | — |
| UPC | — | — |
| Launch price | — | — |
| MPN | — | — |
| Launch price (USD) | — | — |
Features
| Specification | S31 | B40 |
|---|---|---|
| Built-in functions | — | — |
