Side by side comparison and review of Samsung Galaxy S9 and Xiaomi Redmi A1. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Samsung Galaxy S9 | Xiaomi Redmi A1 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-G960W | - | |
| Form Factor | Touch | Touch | |
| Height | 147.7 mm | 164.9 mm | Xiaomi Redmi A1 has greater height than Samsung Galaxy S9. |
| Width | 68.7 mm | 76.75 mm | Xiaomi Redmi A1 has greater width than Samsung Galaxy S9. |
| Depth | 8.5 mm | 9.09 mm | Samsung Galaxy S9 is narrower than Samsung Galaxy S9. |
| Weight | 163 g | 192 g | Samsung Galaxy S9 is lighter than Samsung Galaxy S9. |
| Body Colour | Titanium grey | Lilac purple | Midnight black | Coral blue | Light green | |
| Body Material | Metal frame | - | |
| Protection | Dustproof, splashproof, waterproof | - | |
| Waterproof (Water-resistant) | Yes | - | Samsung Galaxy S9 is waterproof. |
| IP rating | IP68 | - | |
| SAR Value | 1.08 W/kg (body), 0.63 W/kg (head) | 0.997 W/kg (body), 0.846 W/kg (head), 2.541 W/kg (limb) | |
| Integrated Components | Heart rate sensor | FM radio | |
| Connector Type | USB Type-C - 24 pin USB-C 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 | Single-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy S9 | Xiaomi Redmi A1 |
|---|
| Display Type | OLED display | - | |
|---|---|---|---|
| Display Technology | Quad HD+ Super AMOLED | - | |
| Screen Size (Display Size) | 5.8" | 6.52" | Xiaomi Redmi A1 has larger screen size than Samsung Galaxy S9. |
| Screen Resolution (Display Resolution) | 2960 x 1440 pixels | 1600 x 720 pixels | Samsung Galaxy S9 has better screen resolution than Xiaomi Redmi A1. |
| Display Format | QHD+ | HD+ | |
| Pixel Density | 570 ppi | - | |
| Aspect Ratio | 18.5:9 | 20:9 | |
| Colour Depth | 16.7 million colours | - | |
| HDR | Yes | - | Samsung Galaxy S9 has HDR. |
| Display Features | Always-on display, Edge Screen, Infinity Display | Night light screen, Dot Drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Samsung Galaxy S9 | Xiaomi Redmi A1 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 845 | MediaTek Helio A22 | |
|---|---|---|---|
| Processor Number | MSM8998 | - | |
| Clock Speed | 2.8 GHz | 2 GHz | Samsung Galaxy S9 has higher clock speed than Xiaomi Redmi A1. |
| Processor Core Qty | 8-core | Quad-core | Samsung Galaxy S9 has higher processor core quantity than Xiaomi Redmi A1. |
| 64-bit Architecture | Yes | - | Samsung Galaxy S9 has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 630 | - |
| MEMORY | Samsung Galaxy S9 | Xiaomi Redmi A1 |
|---|
| RAM | LPDDR4 SDRAM - 4 GB | LPDDR4X SDRAM - 2 GB | Samsung Galaxy S9 has more RAM than Xiaomi Redmi A1. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | Samsung Galaxy S9 has more internal memory than Xiaomi Redmi A1. |
| User Memory | 48.8 GB | - | |
| Memory Interface | - | eMMC 5.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 400 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Samsung Galaxy S9 | Xiaomi Redmi A1 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 8 Megapixel | Samsung Galaxy S9 has better camera resolution than Xiaomi Redmi A1. |
| Sensor Size | 1/2.55" | - | |
| Lens Aperture | F/1.5 & f/2.4 | F/2.0 | Samsung Galaxy S9 has better lens aperture than Samsung Galaxy S9. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Samsung Galaxy S9 has optical stabilisation. |
| Focus Adjustment | Automatic, manual | - | |
| Digital Zoom | 8x | - | |
| Self-Timer Delay | Yes | - | |
| Special Effects | Motion effect, HDR, Stamp, Bokeh effect, Grid Line, Stickers | HDR | |
| Camera Modes | Panorama, Pro mode, Timer mode, HYPERLAPSE, Auto mode, low-light shots, Food mode, Super Slow-mo, AR Emoji | Time-lapse mode, portrait mode, Short video mode | |
| Face Recognition (Face ID) | Face detection | - | Samsung Galaxy S9 has face detection. |
| White Balance | Custom, automatic | - | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, 2560 x 1440 (QHD) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Selective Focus, Quick Launch, Playback zoom, Tracking Focus, Motion photo, Exposure, Shutter speed, geotagging, Continuous Auto Focus (CAF), RAW image capture, VDIS (Video Digital Image Stabilisation), High CRI LED flash, Tracking AF, Stamps, location tags, Hyperlapse video support 1080p, Live focus with bokeh filters, Super Speed Dual Pixel | AI Dual camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel |
|---|
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 5 Megapixel | Samsung Galaxy S9 has better front camera resolution than Xiaomi Redmi A1. |
| Sensor Size (Front) | 1/3.6" | - | |
| Sensor Type (Front) | CMOS | - | |
| Lens Aperture (Front) | F/1.7 | F/2.2 | Samsung Galaxy S9 has better front lens aperture than Samsung Galaxy S9. |
| Focus Adjustment | Automatic | - | |
| Special Effects (Front) | HDR, Grid Line | - | |
| Camera Modes (Front) | Timer mode, wide selfie mode, selfie mode, AR Emoji, selfie focus | Beautify | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | Quick launch, Motion photo, Stamps, location tags, VDIS (Video Digital Image Stabilization) | AI Selfie |
| BATTERY AND CHARGING | Samsung Galaxy S9 | Xiaomi Redmi A1 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5000 mAh | Xiaomi Redmi A1 has larger battery capacity than Samsung Galaxy S9. |
|---|---|---|---|
| Wireless Charging | Yes | - | Samsung Galaxy S9 can be charged wirelessly. |
| Wireless Charging Standards | WPC, PMA | - | |
| Standby Time | 326 hours | 746 hours | Xiaomi Redmi A1 has longer standby time than Samsung Galaxy S9. |
| Talk Time | 1860 minutes | 1800 minutes | Samsung Galaxy S9 has longer battery life when making calls than Xiaomi Redmi A1. |
| Run Time Details | Talk (3G): up to 1860 min Active online usage (Wi-Fi): up to 14 hrs Active online usage (3G): up to 12 hrs Active online usage (LTE): up to 14 hrs Playback (audio (Always On Display Off)): up to 90 hrs Playback (audio (Always On Display On)): up to 51 hrs Playback (video): up to 17 hrs Standby (AOD off): up to 326 hrs Standby (AOD on): up to 82 hrs |
Talk: up to 1800 min Standby: up to 746 hrs Playback (video): up to 22 hrs Playback (Music): up to 161 hrs |
| CELLULAR | Samsung Galaxy S9 | Xiaomi Redmi A1 |
|---|
| Technology | TD-SCDMA / WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 8.0 Oreo | Android 12 (Go edition) | |
| Intelligent Assistant | Bixby | - | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy S9 | Xiaomi Redmi A1 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE, VoWiFi | FDD-LTE, TDD-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 4, Band 5, Band 8 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 29, Band 30, Band 38, Band 39, Band 40, Band 41, Band 46, Band 66 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 700d, FDD 2300 WCS, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 5150, FDD 1700 - 2110 AWS-3 | FDD 2100, FDD 1800+, 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/ac, ANT+/ANT | Wi-Fi | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.0 | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, SAP, PBAP, MAP, HOGP | - | |
| NFC | Yes | - | Samsung Galaxy S9 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Samsung Galaxy S9 | Xiaomi Redmi A1 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, PCM, AMR, MP3, FLAC, AAC-LC, XMF, AAC +, OGG, eAAC+, MIDI, APE (Monkey's Audio), M4A, apt-X, DSF, DSD, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, OPUS, DFF, MID, AMR-WB, AMR-NB, Vorbis, DSD64, DSD128 | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, VC-1, FLV, AVC, AVI, MPEG-4, WMV, ASF, 3GP, H.264, H.263, M4V, WebM, HEVC, MP43, 3G2, WMV8, VP8, VP9, H.265, WMV7 | - | |
| Sound Enhancements | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound | - |
| FEATURES | Samsung Galaxy S9 | Xiaomi Redmi A1 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, RGB sensor, heart rate, pressure sensor, geomagnetic sensor | Accelerometer | |
| Security Devices | Face recognition, fingerprint reader, eye scan | - | |
| Additional Phone Features | Multitasking, Face Unlock, Wi-Fi Miracast, Multi Window, MU-MIMO technology, Fast Charging, Samsung KNOX, High AOP Mic, Samsung DeX support, Bixby Vision, Intelligent Scan | Fast Charging |
| OTHERS | Samsung Galaxy S9 | Xiaomi Redmi A1 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB Connector (USB-C), micro-USB connector, USB-C cable, headset (tuned by AKG) | USB cable, SIM card removal tool, 10W charger | |
|---|---|---|---|
| Compliant Standards | IP68 | - | |
| Max Depth of Water Resistance | 1.5 m | - |
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