In depth comparison and review of OnePlus 9 and Realme 6i. 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 | OnePlus 9 | Realme 6i |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 160 mm | 164.4 mm | Realme 6i has greater height than OnePlus 9. |
| Width | 74.2 mm | 75.4 mm | Realme 6i has greater width than OnePlus 9. |
| Depth | 8.7 mm | 9 mm | OnePlus 9 is narrower than OnePlus 9. |
| Weight | 192 g | 199 g | OnePlus 9 is lighter than OnePlus 9. |
| Body Colour | Astral black | Arctic sky | Milk white | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 0.59 W/kg (body), 1.14 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | OnePlus 9 | Realme 6i |
|---|
| Display Type | OLED display | - | |
|---|---|---|---|
| Display Technology | Fluid Amoled | - | |
| Screen Size (Display Size) | 6.55" | 6.5" | OnePlus 9 has larger screen size than Realme 6i. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 1600 x 720 pixels | OnePlus 9 has better screen resolution than Realme 6i. |
| Display Format | Full HD+ | HD+ | |
| Pixel Density | 402 ppi | - | |
| Aspect Ratio | 20:9 | 20:9 | |
| Max Brightness | 1100 cd/m² | - | |
| Colour Depth | 16.7 million colours | - | |
| HDR | Yes | - | OnePlus 9 has HDR. |
| HDR Technology | HDR10+ | - | |
| Display Enhancement Technology | Vibrant Color Effect | - | |
| Display Refresh Rate | 120 Hz | - | |
| Display Features | Always-on display, Reading mode, night mode, Wide colour display (P3), sRGB support | Eye Care, Mini-drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | OnePlus 9 | Realme 6i |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 888 | MediaTek Helio G80 | |
|---|---|---|---|
| Clock Speed | - | 2 GHz | |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 660 | Mali-G52 |
| MEMORY | OnePlus 9 | Realme 6i |
|---|
| RAM | LPDDR5 SDRAM - 8 GB | LPDDR4X SDRAM - 4 GB | OnePlus 9 has more RAM than Realme 6i. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| Memory Interface | UFS 3.1 | - | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSD |
| CAMERA | OnePlus 9 | Realme 6i |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 4 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 48 Megapixel | Both phones have the same camera resolution. |
| Sensor Size | 1/1.43" | - | |
| Sensor Name | Sony Exmor RS IMX689 sensor | - | |
| Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
| Lens Construction | 7-element | - | |
| Pixel Size | 1.12 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Minimum Focal Length (Focal Distance) | 23 mm | - | |
| Special Effects | HDR | - | |
| Camera Modes | Panorama, Time-lapse mode, Pro mode, HYPERLAPSE, Nightscape capture mode, Portrait, Filter mode, Super Macro, Portrait video, UltraShot HDR, Smart Scene Recognition, Tilt-shift mode, Focus Peaking, Cat/Dog Face Focus, Super Stable, Video Nightscape | - | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 30fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Tracking Focus, Phase Detect Auto-Focus (PDAF), Continuous Auto Focus (CAF), RAW image capture, Dual Native ISO, 2x2 On-Chip Lens (OCL), Hasselblad Camera, Natural Color Calibration, 12-bit RAW | AI Quad camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 50 Megapixel | 8 Megapixel | OnePlus 9 has better second camera resolution than Realme 6i. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/1.56" | - | |
| Sensor Name (2nd Camera) | Sony Exmor RS IMX766 sensor | - | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.3 | OnePlus 9 has better second camera lens aperture than OnePlus 9. |
| Lens Element Qty (2nd Camera) | 7-element | - | |
| Field of View (2nd Camera) | 119 degree(s) | 119 degree(s) | Both phones have the same second camera lens field of view. |
| Minimum Focal Length (2nd Camera) | 14 mm | - | |
| Camera Features (2nd Camera) | 2x2 On-Chip Lens (OCL), Freeform Lens | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Lens Element Qty (3rd Camera) | 3-element | - | |
| Camera Functions (3rd Camera) | Monochrome | Potrait camera | |
| Camera Features (3rd Camera) | - | B&W Portrait lens |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/2.4 | |
| Camera Functions (4th Camera) | - | Macro camera | |
| Camera Features (4th Camera) | - | 4cm macro photography |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 16 Megapixel | Both phones have the same front camera resolution. |
| Sensor Name (Front) | Sony Exmor RX IMX471 sensor | - | |
| Lens Aperture (Front) | F/2.4 | F/2.0 | Realme 6i has better front lens aperture than OnePlus 9. |
| Pixel Size (Front) | 1 μm | - | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | HDR, face retouch | - | |
| Camera Modes (Front) | Time-lapse mode | AI Beauty | |
| Face Recognition (Face ID) | - | Face recognition | Realme 6i has face detection. |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | - | |
| Camera Features (Front) | Electronic Image Stabiliser (EIS) | - |
| BATTERY AND CHARGING | OnePlus 9 | Realme 6i |
|---|
| Battery Capacity (Battery Size) | 4500 mAh | 5000 mAh | Realme 6i has larger battery capacity than OnePlus 9. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge, Warp Charge 65T technology | - | OnePlus 9 has fast charging technology. |
| Recharge Time (Charging Time) | 29 min | - | |
| Wireless Charging | Yes | - | OnePlus 9 can be charged wirelessly. |
| Wireless Charging Standards | Qi | - | |
| Standby Time | - | 936 hours | |
| Talk Time | - | 1758 minutes | |
| Run Time Details | - | Standby: up to 936 hrs Talk: up to 1758 min Playback (Music): up to 54.7 hrs Continuous viewing (YouTube): up to 20.6 hrs Continuous viewing (Instagram): up to 19.7 hrs |
| CELLULAR | OnePlus 9 | Realme 6i |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 4G | OnePlus 9 has more advanced generation mobile network. |
| Operating System | OxygenOS (based on Android 11) | Android 10 | |
| User Interface | - | Realme UI | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | OnePlus 9 | Realme 6i |
|---|
| Data Transmission | FDD-LTE, TDD-LTE, 5G NR FR1 | 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 9, Band 19 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900, 1700, 800 | 2100, 1900, 1700, 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 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66 | Band 1, Band 2, Band 3, Band 4, 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 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | 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 | |
| 5G NR Band | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, 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 3500, TDD 2300 | - | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac/ax | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.2 | Bluetooth 5.0 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Modem | Snapdragon X55 5G | - |
| MEDIA | OnePlus 9 | Realme 6i |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, MP3, FLAC, AC-3, AAC +, OGG, APE (Monkey's Audio), M4A, LDAC, IMY, EAC3, MID, AMR-WB, AMR-NB, EAC3-JOC, AC-4 | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 | - | |
| Sound Enhancements | Qualcomm aptX audio, Qualcomm aptX HD audio, Dolby Atmos Surround Sound | - |
| FEATURES | OnePlus 9 | Realme 6i |
|---|
| 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, flicker sensor, sensor core | Accelerometer, ambient light sensor, proximity sensor, magnetometer, gyro sensor | |
| Security Devices | Fingerprint reader (under display), face recognition | - | |
| Additional Phone Features | Noise Cancellation Technology, MIMO technology, Gesture Controls, OnePlus Switch, Alert Slider, dual stereo speakers, Zen mode 2.0, OnePlus Games | - |
| OTHERS | OnePlus 9 | Realme 6i |
|---|
| Included Accessories | SIM card removal tool, sticker, screen protector, USB-C to USB-C cable, protective case, Warp Charge 65 power adapter | SIM card removal tool, USB-C cable, protective case, 18W charger, protective film | |
|---|---|---|---|
| Compliant Standards | SGS | - |
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