In depth comparison and review of Samsung Galaxy A40 and Xiaomi Redmi 8. 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 | Samsung Galaxy A40 | Xiaomi Redmi 8 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A405FN/DS | - | |
| Form Factor | Touch | Touch | |
| Height | 144.4 mm | 156.5 mm | Xiaomi Redmi 8 has greater height than Samsung Galaxy A40. |
| Width | 69.2 mm | 75.4 mm | Xiaomi Redmi 8 has greater width than Samsung Galaxy A40. |
| Depth | 7.9 mm | 9.4 mm | Samsung Galaxy A40 is narrower than Samsung Galaxy A40. |
| Weight | 140 g | - | |
| Body Colour | Blue | Coral | White | Black | Sapphire blue | |
| Protection | - | Splashproof | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.34 W/kg (body), 0.49 W/kg (head) | 1.48 W/kg (body), 0.231 W/kg (head), 2.23 W/kg (limb) | |
| Integrated Components | - | FM radio | |
| Connector Type | USB Type-C - 24 pin USB-C 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 | Samsung Galaxy A40 | Xiaomi Redmi 8 |
|---|
| Display Type | OLED display | - | |
|---|---|---|---|
| Display Technology | Super AMOLED | - | |
| Screen Size (Display Size) | 5.9" | 6.22" | Xiaomi Redmi 8 has larger screen size than Samsung Galaxy A40. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 1520 x 720 pixels | Samsung Galaxy A40 has better screen resolution than Xiaomi Redmi 8. |
| Display Format | Full HD+ | HD+ | |
| Pixel Density | 439 ppi | 270 ppi | Samsung Galaxy A40 has better pixel density than Xiaomi Redmi 8. |
| Aspect Ratio | - | 19:9 | |
| Max Brightness | - | 400 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 1500:1 | |
| Display Enhancement Technology | Blue light filter | Sunlight mode | |
| Display Features | Always-on display, Infinity Display, Edge-to-Edge screen | Reading mode, Colour temperature adjustment, night mode, Dot Drop display | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | Samsung Galaxy A40 | Xiaomi Redmi 8 |
|---|
| Processor Type (CPU) | Samsung Exynos | Qualcomm Snapdragon 439 | |
|---|---|---|---|
| Processor Number | 7904 | - | |
| Clock Speed | 1.8 GHz | 2 GHz | Xiaomi Redmi 8 has higher clock speed than Samsung Galaxy A40. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | - | Qualcomm ADRENO 505 |
| MEMORY | Samsung Galaxy A40 | Xiaomi Redmi 8 |
|---|
| RAM | 4 GB | LPDDR3 SDRAM - 3 GB | Samsung Galaxy A40 has more RAM than Xiaomi Redmi 8. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | Samsung Galaxy A40 has more internal memory than Xiaomi Redmi 8. |
| User Memory | 49.4 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSDHC, microSDXC |
| CAMERA | Samsung Galaxy A40 | Xiaomi Redmi 8 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 2 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 12 Megapixel | Samsung Galaxy A40 has better camera resolution than Xiaomi Redmi 8. |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/1.7 | - | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | - | HDR | |
| Camera Modes | Panorama, Pro mode, HYPERLAPSE, portrait mode, AR Emoji, Flowers, Animals, Landscapes, Trees, Sky, Mountains, Beaches, Street scenes, Waterfalls, Snow, Birds, Text, Food, Indoor, Night view, Sunsets, Portaits, Green, Sunrises, Shore | AI portrait mode, Landscapes, Night scenes, AI Beautify 4.0 | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi 8 has face detection. |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 1280 x 720 (720p) at 60 fps | |
| Camera Features (Functions) | AR sticker, Scene Optimiser, 20 different scenes, Smart professional framing, fault detection | Phase Detect Auto-Focus (PDAF), AI Dual camera, AI scene detection |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 5 Megapixel | 2 Megapixel | Samsung Galaxy A40 has better second camera resolution than Xiaomi Redmi 8. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | - | |
| Field of View (2nd Camera) | 123 degree(s) | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 25 Megapixel | 8 Megapixel | Samsung Galaxy A40 has better front camera resolution than Xiaomi Redmi 8. |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | Automatic | - | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | Portrait mode, AR Emoji, Motion Photos | AI portrait mode, AI Beautify 4.0 | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi 8 has face detection. |
| Light Source (Front) | Display flash | Display flash | |
| Camera Features (Front) | Floating camera button | Self-timer |
| BATTERY AND CHARGING | Samsung Galaxy A40 | Xiaomi Redmi 8 |
|---|
| Battery Capacity (Battery Size) | 3100 mAh | 5000 mAh | Xiaomi Redmi 8 has larger battery capacity than Samsung Galaxy A40. |
|---|---|---|---|
| Fast Charging Technology | Samsung Fast Charging | Qualcomm Quick Charge 3.0 | Both phones have fast charging technology. |
| Recharge Time (Charging Time) | - | 2.2 hour(s) | |
| Standby Time | - | 625 hours | |
| Talk Time | 1080 minutes | 1680 minutes | Xiaomi Redmi 8 has longer battery life when making calls than Samsung Galaxy A40. |
| Run Time Details | Active online usage (3G): up to 9 hrs Active online usage (4G): up to 11 hrs Active online usage (Wi-Fi): up to 11 hrs Playback (video): up to 14 hrs Playback (audio): up to 62 hrs Talk (3G): up to 1080 min |
Standby: up to 625 hrs Playback (audio): up to 180.5 hrs Talk: up to 1680 min Playback (video): up to 17 hrs Navigation: up to 16.5 hrs |
| CELLULAR | Samsung Galaxy A40 | Xiaomi Redmi 8 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 9.0 Pie | - | |
| User Interface | Samsung One UI | - | |
| Intelligent Assistant | Bixby | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Samsung Galaxy A40 | Xiaomi Redmi 8 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, 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 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+ | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 4.2 | |
| NFC | Yes | - | Samsung Galaxy A40 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy A40 | Xiaomi Redmi 8 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | AAC, PCM, MP3, FLAC, AAC +, APE (Monkey's Audio), AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 | MKV, MPEG-4, MPEG4-ASP, MPEG-4 SP, H.264 BP, H.264 MP, H.264 HP | |
| Sound Enhancements | Dolby Atmos sound technology | Large speaker box |
| FEATURES | Samsung Galaxy A40 | Xiaomi Redmi 8 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | Accelerometer, ambient light sensor, digital compass, distance sensor | |
| Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader | |
| Additional Phone Features | Alarm Clock, Fast Charging | Infrared remote control, notification LED, AI face unlock |
| OTHERS | Samsung Galaxy A40 | Xiaomi Redmi 8 |
|---|
| Included Accessories | Power adapter | SIM card removal tool, USB-C cable, TPU case, 10W charger |
|---|
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