OnePlus 3 vs. Xiaomi Redmi 9

Phone Comparison, Reviews and Tests

Detailed comparison and review of OnePlus 3 and Xiaomi Redmi 9. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.

Phone Specifications Comparison

OnePlus 3 vs. Xiaomi Redmi 9 Comparison Chart
DESIGN AND DIMENSIONS OnePlus 3 Xiaomi Redmi 9
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 152.7 mm 163.32 mm Xiaomi Redmi 9 has greater height than OnePlus 3.
Width 74.7 mm 77.01 mm Xiaomi Redmi 9 has greater width than OnePlus 3.
Depth 7.4 mm 9.1 mm OnePlus 3 is narrower than OnePlus 3.
Weight 158 g 198 g OnePlus 3 is lighter than OnePlus 3.
Body Colour - Carbon grey
Body Material Anodised aluminium -
Waterproof (Water-resistant) - -
SAR Value 0.645 W/kg (body), 0.995 W/kg (head) 1.065 W/kg (body), 0.789 W/kg (head), 2.309 W/kg (limb)
Integrated Components - Ultra-linear speaker
Connector Type Headset jack - mini-phone 3.5mm
USB Type-C - 24 pin USB-C
USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY OnePlus 3 Xiaomi Redmi 9
Display Type OLED display -
Display Technology Optic AMOLED -
Screen Size (Display Size) 5.5" 6.53" Xiaomi Redmi 9 has larger screen size than OnePlus 3.
Screen Resolution (Display Resolution) 1920 x 1080 pixels 2340 x 1080 pixels Xiaomi Redmi 9 has better screen resolution than OnePlus 3.
Display Format Full HD Full HD+
Pixel Density 401 ppi 394 ppi OnePlus 3 has better pixel density than Xiaomi Redmi 9.
Aspect Ratio - 19.5:9
Max Brightness - 400 cd/m²
Colour Depth 16.7 million colours -
Contrast Ratio - 1500:1
Display Enhancement Technology - Sunlight mode
Display Features - Colour temperature adjustment, Dot Drop display, Reading mode 2.0
Display Protection (Screen Protector) Corning Gorilla Glass 4 (scratch resistant glass) Corning Gorilla Glass 3 (scratch resistant glass)
PROCESSOR OnePlus 3 Xiaomi Redmi 9
Processor Type (CPU) Qualcomm Snapdragon 820 MediaTek Helio G80
Processor Number MSM8996 -
Clock Speed 2.15 GHz 2 GHz OnePlus 3 has higher clock speed than Xiaomi Redmi 9.
Processor Core Qty Quad-core 8-core Xiaomi Redmi 9 has higher processor core quantity than OnePlus 3.
64-bit Architecture Yes Yes Both phones have 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 530 Mali-G52 MC2
MEMORY OnePlus 3 Xiaomi Redmi 9
RAM 6 GB LPDDR4X SDRAM - 4 GB OnePlus 3 has more RAM than Xiaomi Redmi 9.
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 OnePlus 3 Xiaomi Redmi 9
MAIN CAMERA
Number of Main Cameras 1 4
Sensor Resolution 16 Megapixel 13 Megapixel OnePlus 3 has better camera resolution than Xiaomi Redmi 9.
Sensor Name Sony Exmor RS IMX298 sensor -
Lens Type - Wide-angle lens
Lens Aperture F/2.0 F/2.2 OnePlus 3 has better lens aperture than OnePlus 3.
Field of View (FoV) - 75.2 degree(s)
Optical Image Stabiliser (OIS) Optical Image Stabiliser (OIS) - OnePlus 3 has optical stabilisation.
Focus Adjustment Automatic Automatic
Special Effects HDR HDR, Kaleidoscope
HDR Mode Auto HDR mode -
Camera Modes Panorama Portrait mode
Face Recognition (Face ID) Face detection - OnePlus 3 has face detection.
Light Source LED light Flash
Video Resolutions 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
Camera Features (Functions) Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), geotagging -
SECOND CAMERA
Sensor Resolution (2nd Camera) - 8 Megapixel
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) - F/2.2
Field of View (2nd Camera) - 118 degree(s)
THIRD CAMERA
Sensor Resolution (3rd Camera) - 5 Megapixel
Lens Aperture (3rd Camera) - F/2.4
Camera Functions (3rd Camera) - Macro camera
FOURTH CAMERA
Sensor Resolution (4th Camera) - 2 Megapixel
Camera Functions (4th Camera) - Depth camera
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 8 Megapixel 8 Megapixel Both phones have the same front camera resolution.
Sensor Name (Front) Sony Exmor R IMX179 sensor -
Lens Aperture (Front) F/2.0 F/2.0 Both phones have the same front camera lens aperture.
Field of View (Front) - 77.8 degree(s)
Focus Adjustment Focus free Focus free
Special Effects (Front) - HDR
Camera Modes (Front) - Portrait mode
Light Source (Front) - Display flash
Video Resolutions (Front) 1920 x 1080 (1080p) at 30 fps -
Camera Features (Front) - Self-timer, Palm shutter
BATTERY AND CHARGING OnePlus 3 Xiaomi Redmi 9
Battery Capacity (Battery Size) 3000 mAh 5020 mAh Xiaomi Redmi 9 has larger battery capacity than OnePlus 3.
Talk Time - 1860 minutes
Run Time Details - Talk: up to 1860 min
Continuous navigation: up to 19 hrs
Playback (video): up to 19 hrs
Playback (Music): up to 185 hrs
Battery Technology Lithium Ion -
CELLULAR OnePlus 3 Xiaomi Redmi 9
Technology CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System OxygenOS (based on Android 6.0.1) -
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou
COMMUNICATIONS OnePlus 3 Xiaomi Redmi 9
Data Transmission GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE
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 1, Band 2, Band 4, Band 5, Band 7, Band 12, Band 17, Band 30 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 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 700a, FDD 700b, FDD 2300 WCS 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
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11b/g/n
Bluetooth Bluetooth 4.2 Bluetooth 5.0
Bluetooth Profiles A2DP -
NFC Yes - OnePlus 3 has NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA OnePlus 3 Xiaomi Redmi 9
Supported Digital Audio Standards WAV, WMA, MP3, FLAC, eAAC+ AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB
Supported Digital Video Standards XviD, MPEG-4, DivX, H.265 MKV, H.264, ASP, MP4
Sound Enhancements Dirac sound technologies -
FEATURES OnePlus 3 Xiaomi Redmi 9
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, proximity sensor, digital compass, gyro sensor Accelerometer, ambient light sensor, digital compass, distance sensor, infrared (IR) sensor
Security Devices Fingerprint reader Face recognition, fingerprint reader
Additional Phone Features DLNA Certified, sharing media via DLNA Fast Charging, AI face unlock
OTHERS OnePlus 3 Xiaomi Redmi 9
Included Accessories Screen protection film, USB cable, power adapter, SIM card removal tool SIM card removal tool, USB-C cable, TPU case, 10W charger
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