The verdict
Your pick: BLU S91, ahead on Performance & hardware, Connectivity and Battery & charging. Unless Camera decides it for you.
| Category | B9 | S91 |
|---|---|---|
| Design & display | 4.5 | 4.5 |
| Performance & hardware | 2.4 | 3.0 |
| Camera | 3.0 | 2.0 |
| Connectivity | 3.9 | 4.6 |
| Battery & charging | 5.3 | 5.7 |
Which one is for you?
BLU S91, if you care about…
- Wi-Fi Standards
- Wi-Fi 802.11a/b/g/n, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
- against Wi-Fi 802.11 b/g/n
- Bluetooth Version
- Bluetooth 5.0
- against Bluetooth 4.2
- Body Thickness
- 8.9 mm
- against 9.6 mm
Specification comparison
Performance
| Specification | B9 | S91 |
|---|---|---|
| Processor Model | Spreadtrum Unisoc SC9863 | MediaTek Helio G25 |
| Processor Process Size | 28 nm | 12 nm Best value |
| Graphics GPU | PowerVR GE8322 | PowerVR GE8320 |
| Storage Type | eMMC 5.1 | eMMC 5.1 |
| Maximum CPU Clock | 1.3 GHz | 2 GHz Best value |
| Maximum Storage Capacity | 128 GB | 128 GB |
| AnTuTu Score | 104,325 | 127,700 |
| Geekbench 6 Single-Core | — | 185 |
| Geekbench 6 Multi-Core | — | 521 |
| CPU Description | 4x Cortex-A55 at 1.3 GHz + 4x Cortex-A55 at 1.2 GHz | Octa-core CPU with 4 Cortex-A53 cores at 2.0 GHz and 4 Cortex-A53 cores at 1.5 GHz |
| Processor Type | Octa-Core | Octa-Core |
| 64-Bit Processor | Yes | Yes |
| RAM Capacity | 4 GB | 4 GB |
| RAM Type | LPDDR4X | DDR4 |
| Expandable Storage | Yes | Yes |
| AnTuTu version | v9 | — |
Design
| Specification | B9 | S91 |
|---|---|---|
| Body Colors | Blue, Grey | Black, Green |
| Body Thickness | 9.6 mm | 8.9 mm Best value |
| Body Width | 75.9 mm | 76.3 mm |
| Body Height | 164.4 mm | 164.8 mm |
| Weight | 198 g Best value | 202 g |
| Usable Surface | 80 % | 81.1 % Best value |
| Body Materials | Plastic | — |
Battery
| Specification | B9 | S91 |
|---|---|---|
| Battery Capacity | 5,000 mAh | 5,000 mAh |
| Battery Type | Li-Polymer | Li-Polymer |
| Fast Charge Power | 15 W | — |
| Battery Features | Fast Charging, Non-Removable | Battery Level Indicator, Rechargeable |
Display
| Specification | B9 | S91 |
|---|---|---|
| Display Aspect Ratio | 20:9 | 20:9 |
| Display Technology | IPS LCD | IPS LCD |
| Peak Display Brightness | 480 nits | — |
| Display Diagonal | 6.52″ Best value | 6.5″ |
| Display Horizontal Resolution | 720 px | 720 px |
| Display Vertical Resolution | 1,600 px | 1,600 px |
| Display Pixel Density | 264 ppi | 270 ppi Best value |
| Display Features | Water Drop Notch, Scratch Resistant, Gorilla Glass 3, Curved Glass, Capacitive Touch, Multi-Touch, Frameless | IPS LCD, Touchscreen |
Sensors
| Specification | B9 | S91 |
|---|---|---|
| Fingerprint Sensor Placement | Rear | Rear |
Sensor
| Specification | B9 | S91 |
|---|---|---|
| Sensor Features | Fingerprint Sensor, Accelerometer, Gravity Sensor, Light Sensor, Proximity Sensor, Compass | Fingerprint Sensor, Accelerometer, Gyroscope, Compass, Proximity Sensor |
Software
| Specification | B9 | S91 |
|---|---|---|
| Operating System | — | Android 11 |
| OS Family | — | Android |
| OS Version | — | 11 |
| Google Services | Yes | — |
Connectivity
| Specification | B9 | S91 |
|---|---|---|
| SIM Configurations | Dual Nano-SIM, Dual SIM Dual Standby | Dual Nano-SIM |
| Cellular Bands | 2G GSM B2, 2G GSM B3, 2G GSM B5, 2G GSM B8, 3G UMTS B1, 3G UMTS B5, 3G UMTS B8, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B12, 4G LTE B17, 4G LTE B20, 4G LTE B26, 4G LTE B28A, 4G LTE B28B, 4G LTE B38, 4G LTE B40, 4G LTE B41, 4G LTE B66 | 2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1700 AWS, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B12, 4G LTE B13, 4G LTE B17, LTE B28, 4G LTE B66 |
| Cellular Technologies | — | GSM, HSPA, UMTS, LTE, 4G |
| Wi-Fi Standards | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11a/b/g/n, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) Best value |
| Wi-Fi Features | Wi-Fi Hotspot, Wi-Fi Direct | Wi-Fi Direct, Wi-Fi 802.11a/b/g/n |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 Best value |
| Bluetooth Profiles | A2DP, EDR, LE | A2DP, LE |
| Navigation Systems | GPS, A-GPS, GLONASS, BeiDou Best value | GPS, Galileo |
| Connectivity Features | 3.5 mm Audio Jack, Computer Sync, OTA Sync, Tethering, VoLTE, USB Charging, USB Mass Storage, USB OTG | 3.5 mm Audio Jack, FM Radio, USB Type-C, USB OTG |
| USB Version | — | USB 2.0 |
| Max. download speed | — | 150 Mbps |
| Max. upload speed | — | 50 Mbps |
Audio
| Specification | B9 | S91 |
|---|---|---|
| Audio Features | A2DP, EDR, LE | Loudspeaker |
