In depth comparison and review of CAT S40 and Xiaomi Redmi Note 9. 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 S40 | Xiaomi Redmi Note 9 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch - Rugged | Touch | |
| Height | 144.9 mm | 162.3 mm | Xiaomi Redmi Note 9 has greater height than CAT S40. |
| Width | 74.1 mm | 77.2 mm | Xiaomi Redmi Note 9 has greater width than CAT S40. |
| Depth | 12.5 mm | 8.9 mm | Xiaomi Redmi Note 9 is narrower than CAT S40. |
| Weight | 185 g | 199 g | CAT S40 is lighter than CAT S40. |
| Body Colour | Black | Forest green | |
| Protection | Shockproof, dustproof, waterproof | Splashproof | |
| Waterproof (Water-resistant) | Yes | - | CAT S40 is waterproof. |
| IP rating | IP68 | - | |
| SAR Value | 0.429 W/kg (body), 0.609 W/kg (head) | 2.262 W/kg (limb), 1.138 W/kg (body), 0.795 W/kg (head) | |
| Integrated Components | FM radio | Ultra-linear speaker | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | CAT S40 | Xiaomi Redmi Note 9 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | IPS | - | |
| Screen Size (Display Size) | 4.7" | 6.53" | Xiaomi Redmi Note 9 has larger screen size than CAT S40. |
| Screen Resolution (Display Resolution) | 960 x 540 pixels | 2340 x 1080 pixels | Xiaomi Redmi Note 9 has better screen resolution than CAT S40. |
| Display Format | - | Full HD+ | |
| Aspect Ratio | - | 19.5:9 | |
| Max Brightness | - | 450 cd/m² | |
| Contrast Ratio | - | 1500:1 | |
| Display Features | - | Reading mode 2.0, Dot Display, Full Screen gestures | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | CAT S40 | Xiaomi Redmi Note 9 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 210 | MediaTek Helio G85 | |
|---|---|---|---|
| Processor Number | MSM8909 | - | |
| Clock Speed | 1.1 GHz | 2 GHz | Xiaomi Redmi Note 9 has higher clock speed than CAT S40. |
| Processor Core Qty | Quad-core | 8-core | Xiaomi Redmi Note 9 has higher processor core quantity than CAT S40. |
| Graphics System (GPU) | - | ARM G52 MC2 |
| MEMORY | CAT S40 | Xiaomi Redmi Note 9 |
|---|
| RAM | 1 GB | 3 GB | Xiaomi Redmi Note 9 has more RAM than CAT S40. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 64 GB | Xiaomi Redmi Note 9 has more internal memory than CAT S40. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC - up to 64 GB | microSD |
| CAMERA | CAT S40 | Xiaomi Redmi Note 9 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 8 Megapixel | 48 Megapixel | Xiaomi Redmi Note 9 has better camera resolution than CAT S40. |
| Sensor Size | - | 1/2" | |
| Lens Aperture | - | F/1.79 | |
| Lens Construction | - | 6-element | |
| Field of View (FoV) | - | 79.4 degree(s) | |
| Pixel Size | - | 0.8 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR, Kaleidoscope | |
| Camera Modes | - | Burst mode, Panorama, night mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Documents, Beautify, Levelling, Cinematic portraits | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi Note 9 has face detection. |
| Light Source | LED light | Flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps | |
| Camera Features (Functions) | - | 4-in-1 Super Pixel, AI scene detection, Portrait mode with background blurring, Ultra wide-angle edge distortion correction, Steady handheld night photography, full screen frame, AI watermark |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/4" | |
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Lens Element Qty (2nd Camera) | - | 5-element | |
| Field of View (2nd Camera) | - | 118 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.2 μm | |
| Camera Features (2nd Camera) | - | 5-piece lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Pixel Size (3rd Camera) | - | 1.75 μm | |
| Camera Functions (3rd Camera) | - | Macro camera | |
| Camera Features (3rd Camera) | - | AF (2cm-10cm) |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Sensor Size (4th Camera) | - | 1/5" | |
| Lens Aperture (4th Camera) | - | F/2.4 | |
| Lens Element Qty (4th Camera) | - | 3-element | |
| Pixel Size (4th Camera) | - | 1.75 μm | |
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 2 Megapixel | 13 Megapixel | Xiaomi Redmi Note 9 has better front camera resolution than CAT S40. |
| Sensor Size (Front) | - | 1/3.06" | |
| Lens Aperture (Front) | - | F/2.25 | |
| Lens Element Qty (Front) | - | 5-element | |
| Field of View (Front) | - | 74 degree(s) | |
| Pixel Size (Front) | - | 1.12 μm | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | - | Panoramic selfies, AI portrait mode, AI Beautify | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi Note 9 has face detection. |
| Light Source (Front) | - | Display flash | |
| Camera Features (Front) | - | Palm shutter, AI silhouette detection |
| BATTERY AND CHARGING | CAT S40 | Xiaomi Redmi Note 9 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5020 mAh | Xiaomi Redmi Note 9 has larger battery capacity than CAT S40. |
|---|---|---|---|
| Standby Time | 936 hours | - | |
| Talk Time | 1080 minutes | 1980 minutes | Xiaomi Redmi Note 9 has longer battery life when making calls than CAT S40. |
| Run Time Details | Talk: up to 1080 min Standby: up to 936 hrs |
Talk: up to 1980 min Gaming: up to 16 hrs Playback (Music): up to 147 hrs Navigation: up to 16 hrs |
|
| Battery Technology | Lithium Ion | Lithium polymer |
| CELLULAR | CAT S40 | Xiaomi Redmi Note 9 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 5.1 (Lollipop) | - | |
| Navigation | GPS, A-GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | CAT S40 | Xiaomi Redmi Note 9 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1900 GSM, 2100 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 7, Band 8, Band 20 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 2600, FDD 900, FDD 800 DD | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 5.0 | |
| NFC | Yes | - | CAT S40 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | CAT S40 | Xiaomi Redmi Note 9 |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, AAC +, OGG, eAAC+, MKA, MIDI | WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio) | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, H.264, H.263, VP8, VP9, H.265 | MKV, XviD, M4V, MP4 | |
| Audio Amplifier | - | Smart PA |
| FEATURES | CAT S40 | Xiaomi Redmi Note 9 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, infrared (IR) sensor | |
| Security Devices | - | Face recognition, fingerprint reader | |
| Additional Phone Features | TTY compatible, E-911 compliant, Face Unlock, Dual microphones, Wet Touchscreen Operation, Glove Touchscreen Operation | Infrared remote control, HyperEngine technology |
| OTHERS | CAT S40 | Xiaomi Redmi Note 9 |
|---|
| Included Accessories | Power adapter | Protective cover, power adapter, SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | MIL-STD 810G, IP68 | TUV Rheinland Low Blue Light Certification | |
| Max Operating Temperature | 55 °C | - | |
| Min Operating Temperature | -25 °C | - |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
