OnePlus 8 vs. Xiaomi Redmi 9A

Phone Comparison, Reviews and Tests

In depth comparison and review of OnePlus 8 and Xiaomi Redmi 9A. 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.

Phone Specifications Comparison

OnePlus 8 vs. Xiaomi Redmi 9A Comparison Chart
DESIGN AND DIMENSIONS OnePlus 8 Xiaomi Redmi 9A
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 160.2 mm 164.9 mm Xiaomi Redmi 9A has greater height than OnePlus 8.
Width 72.9 mm 77.07 mm Xiaomi Redmi 9A has greater width than OnePlus 8.
Depth 8 mm 9 mm OnePlus 8 is narrower than OnePlus 8.
Weight 180 g 196 g OnePlus 8 is lighter than OnePlus 8.
Body Colour Black | Onyx black | Glacial green Sky blue | Granite grey
Waterproof (Water-resistant) - -
SAR Value 0.86 W/kg 0.398 W/kg (head), 1.186 W/kg (body), 2.526 W/kg (limb)
Integrated Components - FM radio
Connector Type USB Type-C - 24 pin USB-C Micro-USB - 5 pin Micro-USB Type B
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY OnePlus 8 Xiaomi Redmi 9A
Display Type OLED display -
Display Technology Fluid Amoled -
Screen Size (Display Size) 6.55" 6.53" OnePlus 8 has larger screen size than Xiaomi Redmi 9A.
Screen Resolution (Display Resolution) 2400 x 1080 pixels 1600 x 720 pixels OnePlus 8 has better screen resolution than Xiaomi Redmi 9A.
Display Format QHD+ HD+
Pixel Density 402 ppi -
Aspect Ratio 20:9 20:9
Max Brightness - 400 cd/m²
Colour Depth 16.7 million colours -
Contrast Ratio - 1500:1
HDR Yes - OnePlus 8 has HDR.
HDR Technology HDR10+ -
Display Enhancement Technology - Blue light filter, Sunlight mode
Display Features Reading mode, night mode, Wide colour display (P3), 90 Hz Fluid Display Reading mode, Colour temperature adjustment, Dot Drop display
Display Protection (Screen Protector) Corning Gorilla Glass 3D (scratch resistant glass) -
PROCESSOR OnePlus 8 Xiaomi Redmi 9A
Processor Type (CPU) Qualcomm Snapdragon 865 MediaTek Helio G25
Clock Speed 2.84 GHz 2 GHz OnePlus 8 has higher clock speed than Xiaomi Redmi 9A.
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 650 PowerVR GE8320
MEMORY OnePlus 8 Xiaomi Redmi 9A
RAM LPDDR4X SDRAM - 8 GB LPDDR4X SDRAM - 2 GB OnePlus 8 has more RAM than Xiaomi Redmi 9A.
Internal Memory Size (Storage Capacity) 128 GB 32 GB OnePlus 8 has more internal memory than Xiaomi Redmi 9A.
User Memory 100 GB -
Memory Interface UFS 3.0 -
Supported Flash Memory Cards (Expandable Memory) - microSD
CAMERA OnePlus 8 Xiaomi Redmi 9A
MAIN CAMERA
Number of Main Cameras 3 1
Sensor Resolution 48 Megapixel 13 Megapixel OnePlus 8 has better camera resolution than Xiaomi Redmi 9A.
Sensor Size 1/1.4" -
Sensor Name Sony Exmor RS IMX586 sensor -
Lens Aperture F/1.75 -
Lens Construction 6-element -
Pixel Size 0.8 μm -
Optical Image Stabiliser (OIS) Optical Image Stabiliser (OIS) - OnePlus 8 has optical stabilisation.
Focus Adjustment Automatic Automatic
Laser Auto Focus Yes -
Special Effects Portrait, HDR, Studio HDR, Kaleidoscope
Camera Modes Panorama, Time-lapse mode, Pro mode, night mode, portrait mode, Cine Video Mode, Dog, Cat, Nightscape capture mode, Portrait, Ultra shot AI portrait mode, AI Beautify 5.0
Face Recognition (Face ID) Face detection Face recognition Both phones have face detection.
Light Source Dual LED flash Single tone 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 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps
Camera Features (Functions) Noise reduction, GIF animation function, Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), Continuous Auto Focus (CAF), RAW image capture, AI scene detection, UltraShot engine Phase Detect Auto-Focus (PDAF), AI scene detection
SECOND CAMERA
Sensor Resolution (2nd Camera) 2 Megapixel -
Lens Aperture (2nd Camera) F/2.4 -
Pixel Size (2nd Camera) 1.75 μm -
THIRD CAMERA
Sensor Resolution (3rd Camera) 16 Megapixel -
Lens Type (3rd Camera) Ultra wide-angle lens -
Lens Aperture (3rd Camera) F/2.2 -
Field of View (3rd Camera) 116 degree(s) -
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 16 Megapixel 5 Megapixel OnePlus 8 has better front camera resolution than Xiaomi Redmi 9A.
Sensor Name (Front) Sony Exmor RX IMX471 sensor -
Lens Aperture (Front) F/2.45 F/2.2 Xiaomi Redmi 9A has better front lens aperture than OnePlus 8.
Pixel Size (Front) 1 μm 1.12 μm Xiaomi Redmi 9A has larger front camera pixel size than OnePlus 8.
Focus Adjustment Focus free -
Special Effects (Front) HDR, face retouch HDR
Camera Modes (Front) Time-lapse mode AI portrait mode, Portrait, AI Beautify 5.0
Face Recognition (Face ID) - Face recognition Xiaomi Redmi 9A has face detection.
Light Source (Front) Display flash Display flash
Video Resolutions (Front) 1920 x 1080 (1080p) at 30 fps -
Camera Features (Front) Electronic Image Stabiliser (EIS) Self-timer, Palm shutter
BATTERY AND CHARGING OnePlus 8 Xiaomi Redmi 9A
Battery Capacity (Battery Size) 4300 mAh 5000 mAh Xiaomi Redmi 9A has larger battery capacity than OnePlus 8.
Fast Charging Technology Warp Charge 30 technology, Warp Charge 30T technology - OnePlus 8 has fast charging technology.
Standby Time - 816 hours
Talk Time 1740 minutes 2280 minutes Xiaomi Redmi 9A has longer battery life when making calls than OnePlus 8.
Run Time Details Talk: up to 1740 min
Standby: up to 391 hrs
Standby: up to 816 hrs
Playback (audio): up to 168 hrs
Talk: up to 2280 min
Playback (video): up to 19 hrs
Gaming: up to 14 hrs
Battery Technology Lithium Ion -
CELLULAR OnePlus 8 Xiaomi Redmi 9A
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 5G 4G OnePlus 8 has more advanced generation mobile network.
Operating System OxygenOS (based on Android 10) -
Navigation GPS, A-GPS, GLONASS, BeiDou, Galileo GPS, A-GPS, GLONASS, BeiDou
COMMUNICATIONS OnePlus 8 Xiaomi Redmi 9A
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, LTE Advanced, 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 34, Band 38, Band 39, Band 40, Band 41, Band 42, Band 46, 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 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 3500, TDD 5150, 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, n7, n28, n78 -
5G NR Frequency FDD 2100, FDD 1800, FDD 2600, FDD 700APT, TDD TD 3500 -
Wireless Interface IEEE 802.11a/b/g/n/ac, IEEE 802.11a/b/g/n/ac/ax IEEE 802.11b/g/n
Bluetooth Bluetooth 5.1 Bluetooth 5.0
NFC Yes - OnePlus 8 has NFC reader for mobile payments.
Modem Snapdragon X55 5G -
Messaging Services SMS, MMS SMS, MMS
MEDIA OnePlus 8 Xiaomi Redmi 9A
Supported Digital Audio Standards WAV, WMA, AAC, MP3, FLAC, AC-3, AAC +, OGG, APE (Monkey's Audio), M4A, apt-X, LDAC, IMY, EAC3, MID, AMR-WB, AMR-NB, SBC, apt-X HD, EAC3-JOC, AC-4 AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB
Supported Digital Video Standards MKV, FLV, AVI, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 MKV, MPEG4-ASP, MPEG-4 SP, H.264 BP, H.264 MP, H.264 HP
Sound Enhancements Qualcomm aptX audio, Qualcomm aptX HD audio, Dolby Atmos Surround Sound 0.64cc Sound Chamber
FEATURES OnePlus 8 Xiaomi Redmi 9A
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 Accelerometer, ambient light sensor, distance sensor
Security Devices Fingerprint reader (under display), face recognition Face recognition
Additional Phone Features Face Unlock, Noise Cancellation Technology, MIMO technology, Alert Slider AI face unlock, HyperEngine technology
OTHERS OnePlus 8 Xiaomi Redmi 9A
Included Accessories SIM card removal tool, sticker, screen protector, USB-C cable, protective case, Warp Charge 30 power adapter USB cable, SIM card removal tool, 10W charger
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