In depth comparison and review of CAT B15 and CAT S31. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | CAT B15 | CAT S31 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch - Rugged | Touch - Rugged | |
| Height | 125 mm | 146 mm | CAT S31 has greater height than CAT B15. |
| Width | 69.5 mm | 74.42 mm | CAT S31 has greater width than CAT B15. |
| Depth | 14.95 mm | 12.6 mm | CAT S31 is narrower than CAT B15. |
| Weight | 170 g | 200 g | CAT B15 is lighter than CAT B15. |
| Protection | Shockproof, dustproof, waterproof | Shockproof, dustproof, waterproof | |
| Waterproof (Water-resistant) | Yes | Yes | Both phones are waterproof. |
| IP rating | IP67 | IP68 | |
| SAR Value | 0.79 W/kg (body), 0.9 W/kg (head) | 1.649 W/kg (body), 0.799 W/kg (head) | |
| Integrated Components | FM radio | - | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | - | Nano SIM | |
| SIM Card Qty | - | Dual-SIM |
| DISPLAY | CAT B15 | CAT S31 |
|---|
| Display Type | - | LCD display | |
|---|---|---|---|
| Display Technology | - | IPS | |
| Screen Size (Display Size) | 4" | 4.7" | CAT S31 has larger screen size than CAT B15. |
| Screen Resolution (Display Resolution) | 800 x 480 pixels | 1280 x 720 pixels | CAT S31 has better screen resolution than CAT B15. |
| Display Format | - | HD | |
| Display Enhancement Technology | - | Super Bright Display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | CAT B15 | CAT S31 |
|---|
| Processor Type (CPU) | MediaTek | Qualcomm | |
|---|---|---|---|
| Processor Number | MTK6577 | MSM8909 | |
| Clock Speed | 1 GHz | - | |
| Processor Core Qty | Dual-core | Quad-core | CAT S31 has higher processor core quantity than CAT B15. |
| MEMORY | CAT B15 | CAT S31 |
|---|
| RAM | 512 MB | 2 GB | CAT S31 has more RAM than CAT B15. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 4 GB | 16 GB | CAT S31 has more internal memory than CAT B15. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC - up to 32 GB | microSDHC, microSDXC - up to 128 GB |
| CAMERA | CAT B15 | CAT S31 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 5 Megapixel | 8 Megapixel | CAT S31 has better camera resolution than CAT B15. |
| Focus Adjustment | Automatic | Automatic | |
| Light Source | - | LED flash | |
| Video Resolutions | - | 1280 x 720 (720p) at 120 fps |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 0.3 Megapixel | 2 Megapixel | CAT S31 has better front camera resolution than CAT B15. |
| Focus Adjustment | - | Focus free |
| BATTERY AND CHARGING | CAT B15 | CAT S31 |
|---|
| Battery Capacity (Battery Size) | 2000 mAh | 4000 mAh | CAT S31 has larger battery capacity than CAT B15. |
|---|---|---|---|
| Standby Time | 624 hours | 912 hours | CAT S31 has longer standby time than CAT B15. |
| Talk Time | 978 minutes | 1800 minutes | CAT S31 has longer battery life when making calls than CAT B15. |
| Run Time Details | Talk: up to 978 min Standby: up to 624 hrs |
Talk: up to 1800 min Standby: up to 912 hrs |
|
| Battery Technology | Lithium Ion | Lithium Ion |
| CELLULAR | CAT B15 | CAT S31 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 3G | 4G | CAT S31 has more advanced generation mobile network. |
| Operating System | Android 4.1 (Jelly Bean) | Android 7.0 Nougat | |
| Navigation | A-GPS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | CAT B15 | CAT S31 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 850, 900 | |
| 4G LTE Band | - | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 20 | |
| 4G LTE Frequency | - | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD | |
| Wireless Interface | IEEE 802.11b/g/n | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 3.0 | Bluetooth 4.1 | |
| Communication Features | Mobile Email client, Internet browser | - | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | CAT B15 | CAT S31 |
|---|
| Supported Digital Audio Standards | WAV, AAC, Ogg Vorbis, AMR, MP3, MIDI, APE (Monkey's Audio) | - | |
|---|---|---|---|
| Supported Digital Video Standards | H.264, H.263 | - |
| FEATURES | CAT B15 | CAT S31 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
| Personal Information Management | Calendar, synchronization with PC, calculator, reminder, alarm clock | - | |
| Additional Phone Features | Wet Touchscreen Operation | Dual microphones, Wet Touchscreen Operation, Glove Touchscreen Operation | |
| Android Enterprise Recommended | - | Yes |
| OTHERS | CAT B15 | CAT S31 |
|---|
| Included Accessories | Power adapter | Power adapter | |
|---|---|---|---|
| Compliant Standards | MIL-STD 810G, IP67 | MIL-STD 810G, IP68 | |
| Max Depth of Water Resistance | - | 1.2 m | |
| Max Height of Shock Resistance | - | 1.8 m | |
| Max Operating Temperature | 55 °C | 55 °C | |
| Min Operating Temperature | -20 °C | -30 °C |
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