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OPPO Reno5 K vs Vivo S9

What Reno5 K does better (4) and where S9 wins (7) — every spec side by side.

OPPO Reno5 K
OPPO · 2021Reno5 K
6.9Score
4 advantages≈ $400
vs
Vivo S9
Vivo · 2021S9
7.4Score
7 advantages≈ $420
Higher score
6.8Display7.1
7.5Camera8.7
4.8Battery3.1
5.0Features7.1
Dimensions

Size comparison

Reno5 KS9
73.4 × 159.17.973.9 × 158.47.4
Reno5 KS9Difference
Height159.1 mm158.4 mm+0.7 mm
Width73.4 mm73.9 mm−0.5 mm
Thickness7.9 mm7.4 mm+0.5 mm
Weight172 g173 g−1 g

Drawn to the same scale from the official dimensions (front and side).

Why is Reno5 K better than S9?

  1. Wired charging65 W vs 33 W+97%
  2. Battery capacity4,300 mAh vs 4,000 mAh+7%
  3. 3.5 mm headphone jackYes · S9: No
  4. Main camera aperturef/1.7 vs f/1.8+6%

Why is S9 better than Reno5 K?

  1. Optical stabilisationNo · Reno5 K: Yes
  2. NFCNo · Reno5 K: Yes
  3. 4K selfie videoNo · Reno5 K: Yes
  4. CPU frequency2.2 GHz vs 2.6 GHz+18%
  5. Selfie camera32 MP vs 44 MP+38%
  6. Process8 nm vs 6 nm+33%
  7. Thickness7.9 mm vs 7.4 mm+7%
Specifications

Side by side

OPPO Reno5 KOPPO Reno5 K≈ $4006.9
Vivo S9Vivo S9≈ $4207.4
Design
Weight172 g173 g
Thickness7.9 mm7.4 mm
Height159.1 mm158.4 mm
Width73.4 mm73.9 mm
FrameAluminium—
BackGlass—
Glass protectionCorning Gorilla Glass 5—
ColoursMoonlight Black, Starry Dream, Blue BreezeBlack, White, Gradient Blue
Display
Screen size6.4″6.4″
PanelOLEDAMOLED
OLED panelYesYes
Resolution (width)1,080 px1,080 px
Resolution (height)2,400 px2,400 px
Pixel density409 ppi409 ppi
Refresh rate90 Hz90 Hz
Peak brightness750 nits—
Screen-to-body ratio85.5%85.5%
HDR—Yes
Performance
ChipsetQualcomm SM7225 Snapdragon 750G 5GMediatek Dimensity 1100
Chip makerQualcommMediaTek
Process8 nm6 nm
CPU cores88
CPU frequency2.2 GHz2.6 GHz
GPUAdreno 619Mali-G77 MC9
Memory
RAM12 GB12 GB
Storage (max)256 GB256 GB
Storage (base)128 GB128 GB
Storage typeUFS 2.1UFS 3.1
Memory card slotNoNo
Camera
Main camera64 MP64 MP
Main camera aperturef/1.7f/1.8
Main sensor size1/1.73"1/1.72"
Rear cameras22
Optical stabilisationNoYes
Ultra-wide cameraYesYes
Telephoto cameraNoNo
Max video4K4K
4K video frame rate30 fps30 fps
Selfie camera32 MP44 MP
4K selfie videoNoYes
Battery
Battery capacity4,300 mAh4,000 mAh
Battery typeLi-Po—
Wired charging65 W33 W
Charged in 30 min—66%
Wireless chargingNoNo
Connectivity
5GYesYes
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 5Wi-Fi 5
Bluetooth5.15.2
NFCNoYes
USBUSB Type-C 2.0USB Type-C
USB version2—
Dual-band GPSYes—
Satellite navigationGLONASS, GALILEO, BDS, QZSSGLONASS, GALILEO, BDS
Features
Stereo speakersNoNo
3.5 mm headphone jackYesNo
Fingerprint sensorUnder displayUnder display
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Software
OS at launchAndroid 11Android 11
PlatformAndroidAndroid
InterfaceColorOS 11.1OriginOS 1.0
To compare: 0up to 4 models
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