Oppo K9x vs vivo X50 Pro+: A Clash of Titans

The smartphone market is brimming with options, making it tough to choose. Today, we pit the budget-friendly Oppo K9x against the premium vivo X50 Pro+ in a head-to-head comparison. We'll break down their specs, performance, and features to help you decide which device best suits your needs.
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🏆 Quick Verdict

The vivo X50 Pro+ is the clear winner for performance and camera quality thanks to its Snapdragon 865 and advanced optics. However, the Oppo K9x offers excellent value for money with a capable chipset and fast charging. Choose the X50 Pro+ if budget isn't a concern; the K9x is a great choice for budget-conscious buyers.

PHONES
Phone Names Oppo K9x vivo X50 Pro+
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 5, 7, 8, 28, 34, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 34, 38, 39, 40, 41
5G bands1, 28, 41, 77, 78 SA/NSA1, 3, 41, 77, 78, 79 SA/NSA
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / CDMA / HSPA / LTE / 5G
 CDMA2000 1x CDMA 800 & TD-SCDMA
Launch
Announced2021, December 232020, June 01. Released 2020, July 11
StatusAvailable. Released 2021, December 27Discontinued
Body
Build-Glass front, eco leather back or glass back, aluminum frame
Dimensions162.2 x 74.8 x 8.8 mm (6.39 x 2.94 x 0.35 in)158.5 x 73 x 8.8 mm (6.24 x 2.87 x 0.35 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight194 g (6.84 oz)192.2 g (6.77 oz)
Display
ProtectionAluminosilicate glass-
Resolution1080 x 2400 pixels, 20:9 ratio (~405 ppi density)1080 x 2376 pixels (~398 ppi density)
Size6.49 inches, 102.2 cm2 (~84.2% screen-to-body ratio)6.56 inches, 104.6 cm2 (~90.4% screen-to-body ratio)
TypeIPS LCD, 90Hz, 480 nits (typ), 600 nits (HBM)AMOLED, 120Hz, HDR10+
Platform
CPUOcta-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)Octa-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55)
ChipsetMediatek Dimensity 810 (6 nm)Qualcomm SM8250 Snapdragon 865 5G (7 nm+)
GPUMali-G57 MC2Adreno 650
OSAndroid 11, ColorOS 11.1Android 10, Funtouch 10.5
Memory
Card slotmicroSDXCNo
Internal128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
 UFS 2.2UFS 3.1
Main Camera
FeaturesLED flash, HDR, panoramaColor spectrum sensor, Dual-LED dual-tone flash, HDR, panorama
Quad-50 MP, f/1.9, 24mm (wide), 1/1.31", 1.2µm, dual pixel PDAF, OIS 13 MP, f/3.0, 135mm (periscope telephoto), 1/3.1", 1.12µm, PDAF, OIS, 5x optical zoom 32 MP, f/2.1, 50mm (telephoto), 1/2.8", 0.8µm, PDAF, 2x optical zoom 13 MP, f/2.2, 120˚, 16mm (ultrawide), 1/3.4", 1.0µm
Single16 MP, f/2.0, 26mm (wide), 1/3.0”, 1.0µm-
Triple64 MP, f/1.7, 26mm (wide), 1/1.97”, 0.7µm, PDAF 2 MP (macro) Auxiliary lens-
Video1080p@30fps, gyro-EIS8K@30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS
Selfie camera
Features-HDR
Single16 MP, f/2.0, 26mm (wide), 1/3.0”, 1.0µm32 MP, f/2.5, 26mm (wide), 1/2.8", 0.8µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesNo
35mm jackYesNo
Loudspeaker YesYes
 -32-bit/192kHz audio
Comms
Bluetooth5.1, A2DP, LE, aptX5.1, A2DP, LE, aptX HD
NFCNoYes
PositioningGPS, GLONASS, GALILEO, BDSGPS (L1+L5), GLONASS, BDS, GALILEO
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging33W wired, 50% in 27 min Reverse wired44W wired, 62% in 30 min
TypeLi-Po 5000 mAh4350 mAh
Misc
ColorsBlack, BlueBlue, Brown
ModelsPGCM10V2011A
PriceAbout 190 EURAbout 630 EUR
Tests
Battery life- Endurance rating 93h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -27.5 LUFS (Good)
Performance- AnTuTu: 621433 (v8) GeekBench: 3411 (v5.1) GFXBench: 43fps (ES 3.1 onscreen)

Oppo K9x

  • Excellent value for money
  • Fast 33W charging
  • Decent performance for everyday tasks
  • Reverse wired charging

  • Less powerful chipset than flagship phones
  • Likely LCD display (lower brightness/color accuracy)
  • Camera not as advanced as flagship models

vivo X50 Pro+

  • Flagship Snapdragon 865 5G chipset
  • Exceptional camera system
  • Premium design and build quality
  • Impressive battery life (93h endurance rating)

  • Higher price point
  • Older model (may lack latest features)
  • Battery may have degraded over time (being an older device)

Display Comparison

Both phones boast impressive displays with a nominal 'infinite' contrast ratio, suggesting excellent blacks and vibrant colors. The X50 Pro+ likely has a higher resolution and potentially a more advanced panel (likely AMOLED) offering better brightness and color accuracy compared to the K9x (likely LCD). The X50 Pro+ also likely has a higher refresh rate for smoother scrolling.

Camera Comparison

The vivo X50 Pro+ shines in the camera department. Its flagship-grade camera system likely includes a larger sensor, advanced image processing, and features like OIS (Optical Image Stabilization) for sharper photos and videos. The Oppo K9x offers a competent camera setup, but it can't compete with the X50 Pro+'s capabilities, especially in low-light conditions.

Performance

The vivo X50 Pro+’s Snapdragon 865 5G chipset is significantly more powerful than the Oppo K9x’s Dimensity 810. Expect noticeably faster app loading times, smoother multitasking, and better gaming performance on the X50 Pro+. The Dimensity 810 is still capable for everyday tasks, but it won't handle demanding games as well.

Battery Life

Both phones offer impressive battery life, with the vivo X50 Pro+ boasting an endurance rating of 93 hours. The Oppo K9x, while not explicitly stated, likely provides all-day battery life. The Oppo K9x's 33W charging is competitive with the X50 Pro+'s 44W, offering relatively fast charging speeds.

Buying Guide

Who should buy the Oppo K9x? Users seeking a reliable, affordable smartphone with decent performance and fast charging. Who should buy the vivo X50 Pro+? Photography enthusiasts and power users who demand top-tier performance, a premium design, and a flagship camera system.

Frequently Asked Questions

❓ Is the Oppo K9x good for gaming?
The Oppo K9x can handle casual games, but demanding titles may require lower graphics settings for smooth gameplay. The vivo X50 Pro+ is significantly better for gaming.
❓ Which phone has better camera quality?
The vivo X50 Pro+ has a superior camera system with better image quality, especially in low light. It offers more advanced features and a higher-resolution sensor.