In depth comparison and review of Xiaomi MI 4i and Samsung Galaxy S9. 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 | Xiaomi MI 4i | Samsung Galaxy S9 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-G960W | |
| Form Factor | Touch | Touch | |
| Height | 138.1 mm | 147.7 mm | Samsung Galaxy S9 has greater height than Xiaomi MI 4i. |
| Width | 69.6 mm | 68.7 mm | Xiaomi MI 4i has greater width than Samsung Galaxy S9. |
| Depth | 7.8 mm | 8.5 mm | Xiaomi MI 4i is narrower than Xiaomi MI 4i. |
| Weight | 130 g | 163 g | Xiaomi MI 4i is lighter than Xiaomi MI 4i. |
| Body Colour | Black | Dark grey | White | Titanium grey | Lilac purple | Midnight black | Coral blue | |
| Body Material | - | Metal frame | |
| Protection | - | Dustproof, splashproof, waterproof | |
| Waterproof (Water-resistant) | - | Yes | Samsung Galaxy S9 is waterproof. |
| IP rating | - | IP68 | |
| SAR Value | 1.29 W/kg | 1.08 W/kg (body), 0.63 W/kg (head) | |
| Integrated Components | FM radio | Heart rate sensor | |
| 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) | Micro SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Single-SIM |
| DISPLAY | Xiaomi MI 4i | Samsung Galaxy S9 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | IPS | Quad HD+ Super AMOLED | |
| Screen Size (Display Size) | 5" | 5.8" | Samsung Galaxy S9 has larger screen size than Xiaomi MI 4i. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2960 x 1440 pixels | Samsung Galaxy S9 has better screen resolution than Xiaomi MI 4i. |
| Display Format | Full HD | QHD+ | |
| Pixel Density | 441 ppi | 570 ppi | Samsung Galaxy S9 has better pixel density than Xiaomi MI 4i. |
| Aspect Ratio | - | 18.5:9 | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| HDR | - | Yes | Samsung Galaxy S9 has HDR. |
| Display Features | - | Always-on display, Edge Screen, Infinity Display | |
| Display Protection (Screen Protector) | Corning Concore Glass | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | Xiaomi MI 4i | Samsung Galaxy S9 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 615 | Qualcomm Snapdragon 845 | |
|---|---|---|---|
| Processor Number | - | MSM8998 | |
| Clock Speed | 1.7 GHz | 2.8 GHz | Samsung Galaxy S9 has higher clock speed than Xiaomi MI 4i. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 405 | Qualcomm ADRENO 630 |
| MEMORY | Xiaomi MI 4i | Samsung Galaxy S9 |
|---|
| RAM | 2 GB | LPDDR4 SDRAM - 4 GB | Samsung Galaxy S9 has more RAM than Xiaomi MI 4i. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 16 GB | 64 GB | Samsung Galaxy S9 has more internal memory than Xiaomi MI 4i. |
| User Memory | - | 48.8 GB | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSDXC - up to 400 GB |
| CAMERA | Xiaomi MI 4i | Samsung Galaxy S9 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 12 Megapixel | Xiaomi MI 4i has better camera resolution than Samsung Galaxy S9. |
| Sensor Size | - | 1/2.55" | |
| Lens Aperture | F/2.0 | F/1.5 & f/2.4 | Samsung Galaxy S9 has better lens aperture than Xiaomi MI 4i. |
| Lens Construction | 5-element | - | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Samsung Galaxy S9 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic, manual | |
| Digital Zoom | - | 8x | |
| Self-Timer Delay | - | Yes | |
| Special Effects | - | Motion effect, HDR, Stamp, Bokeh effect, Grid Line, Stickers | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, manual mode | Panorama, Pro mode, Timer mode, HYPERLAPSE, Auto mode, low-light shots, Food mode, Super Slow-mo, AR Emoji | |
| Face Recognition (Face ID) | Face detection, smile detection | Face detection | Both phones have face detection. |
| White Balance | - | Custom, automatic | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 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 | |
| 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 |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 8 Megapixel | Samsung Galaxy S9 has better front camera resolution than Xiaomi MI 4i. |
| Sensor Size (Front) | - | 1/3.6" | |
| Sensor Type (Front) | - | CMOS | |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/1.8 | F/1.7 | Samsung Galaxy S9 has better front lens aperture than Xiaomi MI 4i. |
| Lens Element Qty (Front) | 5-element | - | |
| Focus Adjustment | - | Automatic | |
| Special Effects (Front) | - | HDR, Grid Line | |
| Camera Modes (Front) | - | Timer mode, wide selfie mode, selfie mode, AR Emoji, selfie focus | |
| Camera Features (Front) | - | Quick launch, Motion photo, Stamps, location tags, VDIS (Video Digital Image Stabilization) |
| BATTERY AND CHARGING | Xiaomi MI 4i | Samsung Galaxy S9 |
|---|
| Battery Capacity (Battery Size) | 3120 mAh | 3000 mAh | Xiaomi MI 4i 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 | |
| Talk Time | 2100 minutes | 1860 minutes | Xiaomi MI 4i has longer battery life when making calls than Samsung Galaxy S9. |
| Run Time Details | Talk (WCDMA): up to 2100 min | 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 |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | Xiaomi MI 4i | Samsung Galaxy S9 |
|---|
| Technology | TD-SCDMA / WCDMA (UMTS) / GSM | TD-SCDMA / WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 5.0.2 (Lollipop) | Android 8.0 Oreo | |
| User Interface | MIUI V6 | - | |
| Intelligent Assistant | - | Bixby | |
| Payment Technology | - | Samsung Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi MI 4i | Samsung Galaxy S9 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE, VoWiFi | |
|---|---|---|---|
| 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 | |
| 3G UMTS Frequency | - | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 3, Band 7, Band 38, Band 39, Band 40, Band 41 | 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 | |
| 4G LTE Frequency | FDD 1800+, FDD 2600, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | 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 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac, ANT+/ANT | |
| Bluetooth | Bluetooth 4.1 | Bluetooth 5.0 LE | |
| Bluetooth Profiles | A2DP, HID | 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 | SMS, MMS |
| MEDIA | Xiaomi MI 4i | Samsung Galaxy S9 |
|---|
| Supported Digital Audio Standards | WAV, MP3, FLAC, eAAC+ | 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 | XviD, MPEG-4, DivX, H.264 | 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 | Xiaomi MI 4i | Samsung Galaxy S9 |
|---|
| 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, gyro sensor, hall sensor | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, RGB sensor, heart rate, pressure sensor, geomagnetic sensor | |
| Security Devices | - | Face recognition, fingerprint reader, eye scan | |
| Additional Phone Features | MIMO technology, Active noise-cancellation | 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 |
| OTHERS | Xiaomi MI 4i | Samsung Galaxy S9 |
|---|
| Included Accessories | Power adapter | Power adapter, SIM card removal tool, USB Connector (USB-C), micro-USB connector, USB-C cable, headset (tuned by AKG) | |
|---|---|---|---|
| Compliant Standards | - | IP68 | |
| Max Depth of Water Resistance | - | 1.5 m |
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