In depth comparison and review of Xiaomi Redmi Note 9 and Samsung Galaxy Z Fold3 5G. 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 Redmi Note 9 | Samsung Galaxy Z Fold3 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-F926B/DS | |
| Form Factor | Touch | Folder - touch screen, dual screen | |
| Height | 162.3 mm | 158.2 mm | Xiaomi Redmi Note 9 has greater height than Samsung Galaxy Z Fold3 5G. |
| Width | 77.2 mm | 67.1 mm | Xiaomi Redmi Note 9 has greater width than Samsung Galaxy Z Fold3 5G. |
| Depth | 8.9 mm | 16 mm | Xiaomi Redmi Note 9 is narrower than Xiaomi Redmi Note 9. |
| Weight | 199 g | 271 g | Xiaomi Redmi Note 9 is lighter than Xiaomi Redmi Note 9. |
| Dimensions Details | - | Folded - 67.1 mm x 16 mm x 158.2 mm Unfolded - 128.1 mm x 6.4 mm x 158.2 mm |
|
| Body Colour | Forest green | Phantom black | Phantom silver | Phantom Green | |
| Body Material | - | Aluminium, Corning Gorilla Glass Victus | |
| Protection | Splashproof | Water-resistant | |
| Waterproof (Water-resistant) | - | Yes | Samsung Galaxy Z Fold3 5G is waterproof. |
| IP rating | - | IPX8 | |
| Repairability Index | - | 7.8 (out of 10) | |
| SAR Value | 2.262 W/kg (limb), 1.138 W/kg (body), 0.795 W/kg (head) | 1.036 W/kg (head), 1.443 W/kg (body) | |
| Integrated Components | Ultra-linear speaker | - | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | Xiaomi Redmi Note 9 | Samsung Galaxy Z Fold3 5G |
|---|
| Display Type | - | OLED display | |
|---|---|---|---|
| Display Technology | - | Infinity Flex Dynamic AMOLED 2X | |
| Foldable Display | - | Yes | |
| Display Design | - | Inward folding | |
| Screen Size (Display Size) | 6.53" | 7.6" | Samsung Galaxy Z Fold3 5G has larger screen size than Xiaomi Redmi Note 9. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 2208 x 1768 pixels | Samsung Galaxy Z Fold3 5G has better screen resolution than Xiaomi Redmi Note 9. |
| Display Format | Full HD+ | QXGA+ | |
| Pixel Density | - | 374 ppi | |
| Aspect Ratio | 19.5:9 | 22.5:18 | |
| Max Brightness | 450 cd/m² | - | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | 1500:1 | - | |
| HDR | - | Yes | Samsung Galaxy Z Fold3 5G has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Refresh Rate | - | 120 Hz | |
| Display Features | Reading mode 2.0, Dot Display, Full Screen gestures | AOD(Always On Display), flex screen, Edge Lighting | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | Samsung Ultra Thin Glass |
| SECOND DISPLAY |
|---|
| Second Display Type | - | OLED display - colour | |
|---|---|---|---|
| Second Display Screen Size | - | 6.2" | |
| Second Display Resolution | - | 2268 x 832 pixels | |
| Second Display Colour Depth | - | 16.7 million colours |
| UNFOLDED DISPLAY |
|---|
| Unfolded Display Screen Size | - | 7.6 in | |
|---|---|---|---|
| Unfolded Display Resolution | - | 2208 x 1768 pixels |
| PROCESSOR | Xiaomi Redmi Note 9 | Samsung Galaxy Z Fold3 5G |
|---|
| Processor Type (CPU) | MediaTek Helio G85 | Qualcomm Snapdragon 888 5G | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.84 GHz | Samsung Galaxy Z Fold3 5G has higher clock speed than Xiaomi Redmi Note 9. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | ARM G52 MC2 | - |
| MEMORY | Xiaomi Redmi Note 9 | Samsung Galaxy Z Fold3 5G |
|---|
| RAM | 3 GB | 12 GB | Samsung Galaxy Z Fold3 5G has more RAM than Xiaomi Redmi Note 9. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 256 GB | Samsung Galaxy Z Fold3 5G has more internal memory than Xiaomi Redmi Note 9. |
| User Memory | - | 215.7 GB | |
| Memory Interface | - | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSD | - |
| CAMERA | Xiaomi Redmi Note 9 | Samsung Galaxy Z Fold3 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 12 Megapixel | Xiaomi Redmi Note 9 has better camera resolution than Samsung Galaxy Z Fold3 5G. |
| Sensor Size | 1/2" | - | |
| Lens Type | - | Ultra wide-angle lens | |
| Lens Aperture | F/1.79 | F/2.2 | Xiaomi Redmi Note 9 has better lens aperture than Xiaomi Redmi Note 9. |
| Lens Construction | 6-element | - | |
| Field of View (FoV) | 79.4 degree(s) | 123 degree(s) | Samsung Galaxy Z Fold3 5G has larger lens field of view than Xiaomi Redmi Note 9. |
| Pixel Size | 0.8 μm | 1.12 μm | Samsung Galaxy Z Fold3 5G has larger camera pixel size than Xiaomi Redmi Note 9. |
| Optical Image Stabiliser (OIS) | - | Dual OIS (Optical Image Stabilisation) | Samsung Galaxy Z Fold3 5G has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Optical Zoom | - | 2x | |
| Digital Zoom | - | 10x | |
| Self-Timer Delay | - | Yes | |
| Special Effects | HDR, Kaleidoscope | Auto HDR, Grid Line, Motion photos | |
| Camera Modes | Burst mode, Panorama, night mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Documents, Beautify, Levelling, Cinematic portraits | Panorama, Slow motion mode, Pro mode, selfie mode, HYPERLAPSE, Super Slow-mo, Flowers, Greenery, Trees, Sky, Beaches, Watersides, Snow, Backlit, Text, Food, Face, Baby, Person, Dog, Cat, People, Sunset, Sunrise, City, Waterfall, Scenery, Stage, Vehicles, Drinks, Animal, Shoes, Indoor, Clothes, Night view, Portrait, Night, Mountain, Single Take, Pro Video, NIGHT HYPERLAPSE, Portrait video, Director's View | |
| Face Recognition (Face ID) | Face recognition | Face detection | Both phones have face detection. |
| Light Source | Flash | High CRI LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps | 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, Hyperlapse 4K video support at 30 fps, Super Steady 1080p video support at 30 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 | Playback zoom, blink detection, QR-code scanner, VDIS (Video Digital Image Stabilisation), Tracking AF, Video location tags, AR sticker, Scene Optimiser, Lens smudge, Flaw detection, Shot suggestions, AR Emoji, blur detection, HDR10+ recording, Super steady, Zoom-In Mic, HEIF image capture, AR Doodle, Microphone Control, HEVC (High Efficiency Video coding), Dual preview, Auto framing, Capture View mode, Corning Gorilla Glass DX (protective lens glass) |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 12 Megapixel | Samsung Galaxy Z Fold3 5G has better second camera resolution than Xiaomi Redmi Note 9. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/4" | - | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | Wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/1.8 | Samsung Galaxy Z Fold3 5G has better second camera lens aperture than Xiaomi Redmi Note 9. |
| Lens Element Qty (2nd Camera) | 5-element | - | |
| Field of View (2nd Camera) | 118 degree(s) | 83 degree(s) | Xiaomi Redmi Note 9 has larger second camera lens field of view than Samsung Galaxy Z Fold3 5G. |
| Pixel Size (2nd Camera) | 1.2 μm | 1.8 μm | Samsung Galaxy Z Fold3 5G has larger second camera pixel size than Xiaomi Redmi Note 9. |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Samsung Galaxy Z Fold3 5G has optical stabilisation of the second camera. |
| Camera Features (2nd Camera) | 5-piece lens | Dual Pixel AF |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 12 Megapixel | Samsung Galaxy Z Fold3 5G has higher resolution third camera than Xiaomi Redmi Note 9. |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Telephoto lens | |
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Field of View (3rd Camera) | - | 45 degree(s) | |
| Pixel Size (3rd Camera) | 1.75 μm | 1 μm | Xiaomi Redmi Note 9 has larger third camera pixel size than Samsung Galaxy Z Fold3 5G. |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Samsung Galaxy Z Fold3 5G has optical stabilisation of the third camera. |
| Camera Functions (3rd Camera) | Macro camera | - | |
| Camera Features (3rd Camera) | AF (2cm-10cm) | Phase Detect Auto-Focus (PDAF) |
| 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 | 2 | |
|---|---|---|---|
| Sensor Resolution (Front) | 13 Megapixel | 10 Megapixel | Xiaomi Redmi Note 9 has better front camera resolution than Samsung Galaxy Z Fold3 5G. |
| Sensor Size (Front) | 1/3.06" | - | |
| Lens Aperture (Front) | F/2.25 | F/2.2 | Samsung Galaxy Z Fold3 5G has better front lens aperture than Xiaomi Redmi Note 9. |
| Lens Element Qty (Front) | 5-element | - | |
| Field of View (Front) | 74 degree(s) | 80 degree(s) | Samsung Galaxy Z Fold3 5G has larger front lens field of view than Xiaomi Redmi Note 9. |
| Pixel Size (Front) | 1.12 μm | 1.22 μm | Samsung Galaxy Z Fold3 5G has larger front camera pixel size than Xiaomi Redmi Note 9. |
| Special Effects (Front) | HDR | Auto HDR, Grid Line | |
| 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 | - |
| SECOND FRONT CAMERA |
|---|
| Sensor Resolution (2nd Front) | - | 4 Megapixel | |
|---|---|---|---|
| Lens Aperture (2nd Front) | - | F/1.8 | |
| Field of View (2nd Front) | - | 80 degree(s) | |
| Pixel Size (2nd Front) | - | 2 μm |
| BATTERY AND CHARGING | Xiaomi Redmi Note 9 | Samsung Galaxy Z Fold3 5G |
|---|
| Battery Capacity (Battery Size) | 5020 mAh | 4400 mAh | Xiaomi Redmi Note 9 has larger battery capacity than Samsung Galaxy Z Fold3 5G. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 2.0, Adaptive Fast Charging | Samsung Galaxy Z Fold3 5G has fast charging technology. |
| Wireless Charging | - | Yes | Samsung Galaxy Z Fold3 5G can be charged wirelessly. |
| Wireless Charging Standards | - | WPC, PMA, Qi, Fast Wireless Charging, Wireless PowerShare | |
| Talk Time | 1980 minutes | 2040 minutes | Samsung Galaxy Z Fold3 5G has longer battery life when making calls than Xiaomi Redmi Note 9. |
| Run Time Details | Talk: up to 1980 min Gaming: up to 16 hrs Playback (Music): up to 147 hrs Navigation: up to 16 hrs |
Active online usage (LTE): up to 12 hrs Active online usage (Wi-Fi): up to 12 hrs Playback (wireless video): up to 18 hrs Playback (wireless audio): up to 63 hrs Talk (4G): up to 2040 min |
|
| Battery Technology | Lithium polymer | - |
| CELLULAR | Xiaomi Redmi Note 9 | Samsung Galaxy Z Fold3 5G |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Samsung Galaxy Z Fold3 5G has more advanced generation mobile network. |
| Operating System | - | Android 10 | |
| Intelligent Assistant | - | Bixby | |
| Payment Technology | - | Samsung Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Xiaomi Redmi Note 9 | Samsung Galaxy Z Fold3 5G |
|---|
| Data Transmission | VoLTE, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE, LAA, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1900 GSM, 2100 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 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, 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 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66 | |
| 4G LTE Frequency | 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 | 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 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n40 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3700, TDD TD 3500, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.2 | |
| NFC | - | Yes | Samsung Galaxy Z Fold3 5G has NFC reader for mobile payments. |
| Ultra-Wideband (UWB) | - | Yes | Samsung Galaxy Z Fold3 5G has UWB wireless technology. |
| MEDIA | Xiaomi Redmi Note 9 | Samsung Galaxy Z Fold3 5G |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio) | WAV, WMA, AAC, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, DSF, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID, DSD64, DSD128 | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, M4V, MP4 | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | - | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, Dolby Digital sound | |
| Audio Amplifier | Smart PA | - |
| FEATURES | Xiaomi Redmi Note 9 | Samsung Galaxy Z Fold3 5G |
|---|
| 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, digital compass, gyro sensor, infrared (IR) sensor | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, geomagnetic sensor, light sensor | |
| Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader (side) | |
| Additional Phone Features | Infrared remote control, HyperEngine technology | Multitasking, MIMO technology, notification flashlight, Samsung KNOX, Split Screen, High AOP Mic, Smart View, Samsung DeX support, Bixby Vision, Secure Folder function, TalkBack, Dual Audio, Bixby Routines, Intelligent Performance Enhancer, Samsung Smart Switch, dual battery, Flex mode, Multi Active Window, Bluetooth Scalable Codec, S Pen support |
| OTHERS | Xiaomi Redmi Note 9 | Samsung Galaxy Z Fold3 5G |
|---|
| Included Accessories | Protective cover, power adapter, SIM card removal tool, USB-C cable | SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland Low Blue Light Certification | VDE, IPX8 | |
| Max Depth of Water Resistance | - | 1.5 m |
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