In depth comparison and review of Xiaomi Redmi Note 9 and Apple iPhone SE (3rd generation). 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 | Apple iPhone SE (3rd generation) |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | A2783 | |
| Form Factor | Touch | Touch | |
| Height | 162.3 mm | 138.4 mm | Xiaomi Redmi Note 9 has greater height than Apple iPhone SE (3rd generation). |
| Width | 77.2 mm | 67.3 mm | Xiaomi Redmi Note 9 has greater width than Apple iPhone SE (3rd generation). |
| Depth | 8.9 mm | 7.3 mm | Apple iPhone SE (3rd generation) is narrower than Xiaomi Redmi Note 9. |
| Weight | 199 g | 144 g | Apple iPhone SE (3rd generation) is lighter than Xiaomi Redmi Note 9. |
| Body Colour | Forest green | Starlight | Midnight | Red | |
| Body Material | - | Aluminium, glass | |
| Protection | Splashproof | Dustproof, water-resistant, splash-resistant | |
| Waterproof (Water-resistant) | - | Yes | Apple iPhone SE (3rd generation) is waterproof. |
| IP rating | - | IEC 60529 IP67 | |
| SAR Value | 2.262 W/kg (limb), 1.138 W/kg (body), 0.795 W/kg (head) | 0.99 W/kg (body), 0.98 W/kg (head) | |
| Integrated Components | Ultra-linear speaker | - | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Lightning | |
| 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 | Apple iPhone SE (3rd generation) |
|---|
| Display Type | - | LCD display | |
|---|---|---|---|
| Display Technology | - | Retina HD display with IPS technology | |
| Screen Size (Display Size) | 6.53" | 4.7" | Xiaomi Redmi Note 9 has larger screen size than Apple iPhone SE (3rd generation). |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 1334 x 750 pixels | Xiaomi Redmi Note 9 has better screen resolution than Apple iPhone SE (3rd generation). |
| Display Format | Full HD+ | - | |
| Pixel Density | - | 326 ppi | |
| Aspect Ratio | 19.5:9 | - | |
| Max Brightness | 450 cd/m² | 625 cd/m² | Apple iPhone SE (3rd generation) has better display brightness than Xiaomi Redmi Note 9. |
| Contrast Ratio | 1500:1 | 1400:1 | Xiaomi Redmi Note 9 has better display contrast ratio than Apple iPhone SE (3rd generation). |
| Display Enhancement Technology | - | Dolby Vision | |
| Display Features | Reading mode 2.0, Dot Display, Full Screen gestures | Display Zoom, Reachability (screen shifting), True Tone display, Wide colour display (P3), Dark mode, Haptic touch, Hybrid Log-Gamma (HLG) | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | Fingerprint-resistant oleophobic coating |
| PROCESSOR | Xiaomi Redmi Note 9 | Apple iPhone SE (3rd generation) |
|---|
| Processor Type (CPU) | MediaTek Helio G85 | Apple A15 Bionic | |
|---|---|---|---|
| Clock Speed | 2 GHz | - | |
| Processor Core Qty | 8-core | - | |
| Graphics System (GPU) | ARM G52 MC2 | - |
| MEMORY | Xiaomi Redmi Note 9 | Apple iPhone SE (3rd generation) |
|---|
| RAM | 3 GB | - | |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 64 GB | Both phones have the same internal memory capacity. |
| Supported Flash Memory Cards (Expandable Memory) | microSD | - |
| CAMERA | Xiaomi Redmi Note 9 | Apple iPhone SE (3rd generation) |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 1 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 12 Megapixel | Xiaomi Redmi Note 9 has better camera resolution than Apple iPhone SE (3rd generation). |
| Sensor Size | 1/2" | - | |
| Lens Aperture | F/1.79 | F/1.8 | Xiaomi Redmi Note 9 has better lens aperture than Xiaomi Redmi Note 9. |
| Lens Construction | 6-element | 6-element | |
| Field of View (FoV) | 79.4 degree(s) | - | |
| Pixel Size | 0.8 μm | - | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Apple iPhone SE (3rd generation) has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 5x | |
| Special Effects | HDR, Kaleidoscope | Natural, Studio, Contour, Stage, Stage Mono, High‑Key Mono | |
| HDR Mode | - | Smart HDR | |
| Camera Modes | Burst mode, Panorama, night mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Documents, Beautify, Levelling, Cinematic portraits | Burst mode, Panorama, Live Photos, Timelapse video, Portrait mode with advanced bokeh and Depth Control, Portrait Lighting, wide colour capture for photos and Live Photos | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi Note 9 has face detection. |
| Light Source | Flash | True Tone 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, Slo-mo video 1920 x 1080 (1080p) at 120 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, 3840 x 2160 (4K) at 24 fps, Slo-mo video 1920 x 1080 (1080p) at 240 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 | Sapphire crystal lens cover, Cinematic video stabilisation, Focus Pixels, Cinematic video stabilisation, Playback zoom, geotagging, Stereo Recording, Continuous autofocus video, 8MP still photos recording 4K video, Time‑lapse video with stabilisation, Slow Sync, Advanced red-eye correction, Optical image stabilization for video, Extended dynamic range for video, HEIF image capture, Digital zoom up to 3x for video, QuickTake video, Deep Fusion, Photographic Styles |
| 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) | 13 Megapixel | 7 Megapixel | Xiaomi Redmi Note 9 has better front camera resolution than Apple iPhone SE (3rd generation). |
| Sensor Size (Front) | 1/3.06" | - | |
| Lens Aperture (Front) | F/2.25 | F/2.2 | Apple iPhone SE (3rd generation) has better front lens aperture than Xiaomi Redmi Note 9. |
| Lens Element Qty (Front) | 5-element | - | |
| Field of View (Front) | 74 degree(s) | - | |
| Pixel Size (Front) | 1.12 μm | - | |
| Special Effects (Front) | HDR | Natural, Studio, Contour, Stage, Stage Mono, High‑Key Mono | |
| HDR Mode (Front) | - | Auto HDR mode | |
| Camera Modes (Front) | Panoramic selfies, AI portrait mode, AI Beautify | Burst mode, Live Photos, Portrait mode with advanced bokeh and Depth Control, Portrait Lighting, wide colour capture for photos and Live Photos | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi Note 9 has face detection. |
| Light Source (Front) | Display flash | Retina Flash | |
| Video Resolutions (Front) | - | 1280 x 720 (720p), 1920 x 1080 (1080p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps | |
| Camera Features (Front) | Palm shutter, AI silhouette detection | Auto image stabilisation, Cinematic video stabilisation, QuickTake video, Deep Fusion |
| BATTERY AND CHARGING | Xiaomi Redmi Note 9 | Apple iPhone SE (3rd generation) |
|---|
| Battery Capacity (Battery Size) | 5020 mAh | - | |
|---|---|---|---|
| Wireless Charging | - | Yes | Apple iPhone SE (3rd generation) can be charged wirelessly. |
| Wireless Charging Standards | - | Qi | |
| Talk Time | 1980 minutes | - | |
| Run Time Details | Talk: up to 1980 min Gaming: up to 16 hrs Playback (Music): up to 147 hrs Navigation: up to 16 hrs |
Playback (audio): up to 50 hrs Playback (video): up to 15 hrs Playback (streamed video): up to 10 hrs |
|
| Battery Technology | Lithium polymer | Lithium Ion |
| CELLULAR | Xiaomi Redmi Note 9 | Apple iPhone SE (3rd generation) |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Apple iPhone SE (3rd generation) has more advanced generation mobile network. |
| Operating System | - | iOS 15 | |
| Intelligent Assistant | - | Siri | |
| Payment Technology | - | Apple Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Xiaomi Redmi Note 9 | Apple iPhone SE (3rd generation) |
|---|
| Data Transmission | VoLTE, FDD-LTE, TDD-LTE | EDGE, HSPA+, LTE, DC-HSDPA, LTE Advanced, VoLTE, FDD-LTE, TDD-LTE, VoWiFi, 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 5, Band 8, Band 10 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 850, 900, 1700 EAWS | |
| 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 30, Band 32, Band 34, Band 38, Band 39, Band 40, Band 41, Band 42, Band 46, Band 48, 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 2300 WCS, FDD 1500 L, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, TDD 5150, TDD 3600, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n2, n3, n5, n7, n8, n20, n28, n38, n41, n66, n77, n78, n79, n40, n25, n12, n48, n30 | |
| 5G NR Frequency | - | FDD 2100, FDD 1900PCS, 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 TD 4500, TDD 2300, FDD 1900, n12, TDD 3500, FDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11ax | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | - | Yes | Apple iPhone SE (3rd generation) has NFC reader for mobile payments. |
| MEDIA | Xiaomi Redmi Note 9 | Apple iPhone SE (3rd generation) |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio) | Audible, MP3, FLAC, Apple Lossless, AC-3, AAC-LC, LPCM, HE-AAC, Audible AAX, Audible AAX+, protected AAC, EAC3, HE-AAC v2 | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, M4V, MP4 | M-JPEG, H.264, HEVC, MPEG-4 Part 2, HEIF | |
| Sound Enhancements | - | Dolby Digital Plus sound, Dolby Digital sound | |
| Video Enhancements | - | HDR10, Hybrid Log-Gamma (HLG) | |
| Audio Amplifier | Smart PA | - |
| FEATURES | Xiaomi Redmi Note 9 | Apple iPhone SE (3rd generation) |
|---|
| Phone Functions | 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, ambient light sensor, proximity sensor, 3-axis gyro sensor, digital compass, barometer | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader | |
| Additional Phone Features | Infrared remote control, HyperEngine technology | MIMO technology, Apple TV support (2nd or later), AirPlay Mirroring, Third‑generation Neural Engine, Express Transit cards with power reserve, 4K HDR AirPlay Mirroring, FaceTime HD (1080p), 16‑core Neural Engine |
| OTHERS | Xiaomi Redmi Note 9 | Apple iPhone SE (3rd generation) |
|---|
| Included Accessories | Protective cover, power adapter, SIM card removal tool, USB-C cable | Lightning to USB-C cable | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland Low Blue Light Certification | IEC 60529 IP67, HAC (Hearing Aid Compatible) | |
| Max Depth of Water Resistance | - | 1 m | |
| Max Operating Temperature | - | 35 °C | |
| Min Operating Temperature | - | 0 °C | |
| Humidity Range Operating | - | 5 - 95% (non-condensing) |
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