The verdict
Neither runs away with it: each wins something.
| Category | S31 | 2 |
|---|---|---|
| Design & display | 4.2 | 4.7 |
| Performance & hardware | 1.0 | 1.0 |
| Camera | 1.3 | 1.3 |
| Connectivity | 4.0 | 3.4 |
| Battery & charging | 3.8 | 4.0 |
Which one is for you?
Cat S31, if you care about…
- RAM Capacity
- 2 GB
- against 1 GB
- Wi-Fi Standards
- Wi-Fi 802.11 b/g/n, Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)
- against Wi-Fi 802.11 b/g/n, Wi-Fi 4 (802.11n)
- Maximum Storage Capacity
- 16 GB
- against 8 GB
- Display Pixel Density
- 312 ppi
- against 294 ppi
Nokia 2, if you care about…
- Display Technology
- IPS LCD
- against TFT LCD
- Weight
- 161 g
- against 200 g
- Usable Surface
- 67.4 %
- against 56.1 %
- Body Thickness
- 9.3 mm
- against 12.6 mm
Specification comparison
Performance
| Specification | S31 | 2 |
|---|---|---|
| Processor Model | Qualcomm Snapdragon 210 | Qualcomm Snapdragon 212 |
| Processor Process Size | 28 nm | 28 nm |
| Graphics GPU | Qualcomm Adreno 304 | Qualcomm Adreno 304 |
| Storage Type | eMMC 4.5 | eMMC 4.5 |
| Maximum CPU Clock | 1.3 GHz | 1.3 GHz |
| Maximum Storage Capacity | 16 GB Best value | 8 GB |
| AnTuTu Score | 21,311 | 9,032 |
| CPU Description | Quad-core 1.3 GHz Cortex-A7 | Quad-core 1.3 GHz Cortex-A7 |
| Processor Type | Quad-Core | Quad-Core |
| 64-Bit Processor | Yes Best value | No |
| RAM Capacity | 2 GB Best value | 1 GB |
| Expandable Storage | Yes | Yes |
| Maximum memory card | 64 GB | 128 GB Best value |
Design
| Specification | S31 | 2 |
|---|---|---|
| Body Colors | Black | Black, White, Copper |
| Body Thickness | 12.6 mm | 9.3 mm Best value |
| Body Width | 74.4 mm | 71.3 mm |
| Body Height | 146 mm | 143.5 mm |
| Weight | 200 g | 161 g Best value |
| Usable Surface | 56.1 % | 67.4 % Best value |
| Body Materials | — | Glass, Plastic, Aluminium Alloy |
| Resistance Features | IP68, MIL-STD-810G, Drop Resistant Up to 1.8 m | — |
| Waterproof Depth | 1.2 m | — |
Battery
| Specification | S31 | 2 |
|---|---|---|
| Battery Capacity | 4,000 mAh | 4,100 mAh Best value |
| Battery Type | Li-Ion | Li-Ion |
| Battery Features | Battery Level Indicator, Rechargeable | Battery Level Indicator, Rechargeable |
| Talk time | — | 19 h |
| Standby time | — | 1,340 h |
| Music playback time | — | 139 h |
Display
| Specification | S31 | 2 |
|---|---|---|
| Display Aspect Ratio | 16:9 | 16:9 |
| Display Technology | TFT LCD | IPS LCD Best value |
| Display Diagonal | 4.7″ | 5″ Best value |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,280 px | 1,280 px |
| Display Pixel Density | 312 ppi Best value | 294 ppi |
| Display Contrast Ratio | — | 1,227 :1 |
| Display Features | TFT LCD, Gorilla Glass 3, Touchscreen | Gorilla Glass 3, Touchscreen |
Sensor
| Specification | S31 | 2 |
|---|---|---|
| Sensor Features | Accelerometer, Proximity Sensor, Compass, Gyroscope | Accelerometer, Proximity Sensor, Compass |
Software
| Specification | S31 | 2 |
|---|---|---|
| Operating System | Android 7 | Android 7 |
| OS Family | Android | Android |
| OS Version | 7 | 7 |
Connectivity
| Specification | S31 | 2 |
|---|---|---|
| SIM Configurations | Dual Nano-SIM | Single Nano-SIM, Dual 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 B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20, LTE B28, 4G LTE B38, 4G LTE B40 |
| 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) Best value | Wi-Fi 802.11 b/g/n, Wi-Fi 4 (802.11n) |
| Wi-Fi Features | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 4.1 |
| Bluetooth Profiles | A2DP, LE | A2DP, LE |
| Navigation Systems | GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou |
| Connectivity Features | 3.5 mm Audio Jack, FM Radio, microUSB, USB OTG, USB Charging | 3.5 mm Audio Jack, FM Radio, microUSB |
| USB Version | microUSB | microUSB |
| SAR American Head | 1.14 W/kg | — |
| SAR American Body | 1.19 W/kg | — |
| SAR (EU) head | — | 0.29 W/kg |
| SAR (EU) body | — | 1.53 W/kg |
| Max. download speed | 150 Mbps | 150 Mbps |
| Max. upload speed | 50 Mbps | 50 Mbps |
Audio
| Specification | S31 | 2 |
|---|---|---|
| Microphone Count | 1 | 1 |
| Audio Features | Loudspeaker, Stereo Speakers, A2DP, LE Best value | A2DP, LE, Loudspeaker |
Technical
| Specification | S31 | 2 |
|---|---|---|
| Model numbers | — | TA-1029, TA-1035, TA-1007 |
