vivo iQOO 9 vs Xiaomi Redmi K50 Pro: Which Flagship Delivers More Power?

The vivo iQOO 9 and Xiaomi Redmi K50 Pro represent a fascinating clash of flagship philosophies. Both devices target performance enthusiasts, but diverge in their core silicon – Qualcomm’s Snapdragon 8 Gen 1 versus MediaTek’s Dimensity 9000. This comparison dissects the nuances of each phone, focusing on real-world impact for gamers, power users, and those prioritizing rapid charging.
Phones Images

🏆 Quick Verdict

For the average user prioritizing sustained performance and potentially better thermal management, the Xiaomi Redmi K50 Pro edges out the iQOO 9. The Dimensity 9000’s architecture, coupled with comparable charging speeds, offers a more balanced experience, especially during extended gaming sessions.

PHONES
Phone Names vivo iQOO 9 (China) Xiaomi Redmi K50 Pro
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42
5G bands1, 3, 5, 8, 28, 41, 77, 78 SA/NSA1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / CDMA / HSPA / CDMA2000 / LTE / 5G
 CDMA2000 1x CDMA2000 1x
Launch
Announced2022, January 052022, March 17
StatusAvailable. Released 2022, January 12Available. Released 2022, March 22
Body
Build-Glass front (Gorilla Glass Victus), glass back
Dimensions164.5 x 76.7 x 8.4 mm (6.48 x 3.02 x 0.33 in)163.1 x 76.2 x 8.5 mm (6.42 x 3.00 x 0.33 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight206 g (7.27 oz)201 g (7.09 oz)
 -IP53, dust and splash resistant
Display
Protection-Corning Gorilla Glass Victus
Resolution1080 x 2400 pixels, 20:9 ratio (~388 ppi density)1440 x 3200 pixels, 20:9 ratio (~526 ppi density)
Size6.78 inches, 111.0 cm2 (~88.0% screen-to-body ratio)6.67 inches, 107.4 cm2 (~86.4% screen-to-body ratio)
TypeAMOLED, 120Hz, HDR10, 1500 nits (peak)OLED, 120Hz, Dolby Vision, HDR10+, 1200 nits (peak)
Platform
CPUOcta-core (1x3.00 GHz Cortex-X2 & 3x2.50 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)Octa-core (1x3.05 GHz Cortex-X2 & 3x2.85 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
ChipsetQualcomm SM8450 Snapdragon 8 Gen 1 (4 nm)Mediatek Dimensity 9000 (4 nm)
GPUAdreno 730Mali-G710 MC10
OSAndroid 12, OriginOS OceanAndroid 12, MIUI 13
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
 UFS 3.1UFS 3.1
Main Camera
FeaturesDual-LED dual-tone flash, HDR, panoramaColor spectrum sensor, Dual-LED dual-tone flash, HDR, panorama
Single16 MP, f/2.5, (wide)20 MP, (wide)
Triple50 MP, f/1.8, (wide), 1/1.57", 1.0µm, PDAF, OIS 12 MP, f/2.0, 47mm (telephoto), PDAF, 2x optical zoom 13 MP, f/2.2, 16mm, 120˚ (ultrawide)108 MP, (wide), 1/1.52", 0.7µm, PDAF, OIS 8 MP, 119˚ (ultrawide) 2 MP (macro)
Video4K@30fps, 1080p@30fps, gyro-EIS4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS
Selfie camera
FeaturesHDR-
Single16 MP, f/2.5, (wide)20 MP, (wide)
Video1080p@30fps, gyro-EIS1080p@30/120fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with dual speakersYes, with stereo speakers
 24-bit/192kHz audio24-bit/192kHz audio
Comms
Bluetooth5.2, A2DP, LE, aptX HD, aptX Adaptive5.3, A2DP, LE
Infrared port-Yes
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDS, QZSSGPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, gyro, proximity, compass
Battery
Charging120W wired, 100% in 19 min 10W reverse wireless120W wired, PD3.0, QC3, 100% in 19 min
Type4700 mAhLi-Po 5000 mAh
Misc
ColorsWhite (BMW M branding), Orange, BlackBlack, Gray, Blue, Green
ModelsV2171A22021211RC, 22011211C
PriceAbout 560 EURAbout 410 EUR

vivo iQOO 9 (China)

  • Qualcomm Snapdragon 8 Gen 1 offers peak performance.
  • 120W wired charging for incredibly fast top-ups.
  • Potential for strong software optimization from vivo.

  • Snapdragon 8 Gen 1 is prone to thermal throttling.
  • May require aggressive cooling solutions for sustained performance.

Xiaomi Redmi K50 Pro

  • MediaTek Dimensity 9000 offers excellent sustained performance.
  • Superior thermal efficiency compared to Snapdragon 8 Gen 1.
  • 120W wired charging matches the iQOO 9's speed.

  • May not achieve the absolute peak performance of the Snapdragon 8 Gen 1 in short bursts.
  • Software optimization may not be as aggressive as vivo.

Display Comparison

While both phones are expected to feature high-refresh-rate AMOLED displays (specs not provided), the core difference lies beneath the surface. The chipset’s display engine impacts panel responsiveness and power efficiency. Without specific display specs, it’s difficult to declare a winner, but the Dimensity 9000’s integrated display engine is known for its efficiency. The iQOO 9’s Snapdragon 8 Gen 1 will rely more heavily on software optimization for similar results.

Camera Comparison

Detailed camera specs are absent, making a direct comparison challenging. However, both brands typically prioritize strong camera performance in their flagship models. The iQOO 9 and Redmi K50 Pro are likely to feature similar main sensor resolutions and optical image stabilization (OIS). The image processing style will be the key differentiator – vivo often leans towards vibrant, saturated colors, while Xiaomi tends towards a more natural look. Without sensor size or aperture data, it’s impossible to definitively declare a camera winner.

Performance

The heart of the matter: the Snapdragon 8 Gen 1 in the iQOO 9 versus the Dimensity 9000 in the Redmi K50 Pro. Both are 4nm chips, but their architectures differ. The Redmi K50 Pro’s Dimensity 9000 boasts a slightly higher peak CPU clock speed (3.05 GHz vs 3.00 GHz) on its Cortex-X2 core, and more significantly, higher clock speeds on its Cortex-A710 cores (2.85 GHz vs 2.50 GHz). This translates to potentially faster multi-core performance. Crucially, the Dimensity 9000 is widely regarded as having superior thermal efficiency, mitigating throttling under sustained load – a common issue with the Snapdragon 8 Gen 1. Both utilize LPDDR5X RAM, ensuring ample memory bandwidth.

Battery Life

Both the iQOO 9 and Redmi K50 Pro feature 120W wired charging, achieving a full charge in a claimed 19 minutes. This rapid charging is a significant benefit for both devices, minimizing downtime. While battery capacity isn’t specified, the Dimensity 9000’s superior power efficiency could translate to slightly longer real-world battery life for the Redmi K50 Pro, even with a similar capacity battery. Both also offer 10W reverse wireless charging, a convenient feature for topping up accessories.

Buying Guide

Buy the vivo iQOO 9 (China) if you specifically need the Qualcomm ecosystem and are comfortable potentially managing thermal throttling with aggressive cooling. Buy the Xiaomi Redmi K50 Pro if you prioritize sustained performance, a potentially more efficient chipset, and a slightly more refined overall experience, particularly for demanding tasks like gaming and video editing.

Frequently Asked Questions

❓ Will the Snapdragon 8 Gen 1 in the iQOO 9 overheat during prolonged gaming sessions?
The Snapdragon 8 Gen 1 is known to generate significant heat under sustained load. While the iQOO 9 likely incorporates cooling solutions, throttling is still a possibility, potentially impacting frame rates and performance over extended gaming sessions. The Redmi K50 Pro’s Dimensity 9000 is less prone to this issue.
❓ Does the Redmi K50 Pro support high frame rates in demanding games like PUBG Mobile?
The Dimensity 9000 is capable of handling high frame rates in PUBG Mobile and other demanding titles. While specific frame rate support depends on game optimization, the K50 Pro’s powerful GPU and efficient thermal management should allow for a smooth and consistent gaming experience at 60fps or higher, potentially even 90fps depending on game settings.
❓ Is the 120W charging on both phones compatible with all USB-PD chargers?
Both phones support 120W wired charging and include support for PD3.0 and QC3. However, to achieve the full 120W charging speed, you'll need a charger specifically rated for that wattage and supporting the appropriate Power Delivery (PD) or Quick Charge (QC) protocol. Using a lower-wattage charger will still charge the phone, but at a slower rate.