iQOO Z7 vs Oppo K11x: A Deep Dive into Mid-Range Performance and Charging

The iQOO Z7 (China) and Oppo K11x represent compelling options in the increasingly competitive mid-range smartphone market. Both leverage Qualcomm's Snapdragon platform, but diverge significantly in chipset choice and charging capabilities. This comparison dissects these differences to determine which device delivers the best experience for various user needs.
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🏆 Quick Verdict

For most users, the iQOO Z7 emerges as the stronger contender. Its Snapdragon 782G chipset provides a substantial performance uplift over the K11x’s Snapdragon 695, making it better suited for demanding tasks and gaming. While the K11x offers respectable battery life and 67W charging, the Z7’s blazing-fast 120W charging is a game-changer.

PHONES
Phone Names vivo iQOO Z7 (China) Oppo K11x
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100HSDPA 850 / 900 / 1700(AWS) / 2100
4G bands1, 3, 5, 8, 28, 34, 38, 39, 40, 411, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41
5G bands1, 5, 8, 28, 41, 77, 78 SA/NSA1, 5, 8, 28, 41, 77, 78 SA/NSA
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / HSPA / LTE / 5G
 CDMA2000 1x -
Launch
Announced2023, March 202023, May 25
StatusAvailable. Released 2023, March 24Available. Released 2023, May 25
Body
Build-Glass front, plastic frame, plastic back
Dimensions164.6 x 75.8 x 8.8 mm (6.48 x 2.98 x 0.35 in)165.5 x 76 x 8.3 mm (6.52 x 2.99 x 0.33 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight201.5 g (7.13 oz)195 g (6.88 oz)
Display
Protection-Corning Gorilla Glass
Resolution1080 x 2388 pixels (~395 ppi density)1080 x 2400 pixels, 20:9 ratio (~392 ppi density)
Size6.64 inches, 106.8 cm2 (~85.6% screen-to-body ratio)6.72 inches, 109.0 cm2 (~86.7% screen-to-body ratio)
TypeIPS LCD, 120Hz, HDR10IPS LCD, 120Hz, 550 nits (typ), 680 nits (peak)
Platform
CPUOcta-core (1x2.7 GHz Cortex-A78 & 3x2.4 GHz Cortex-A78 & 4x1.8 GHz Cortex-A55)Octa-core (2x2.2 GHz Kryo 660 Gold & 6x1.7 GHz Kryo 660 Silver)
ChipsetQualcomm Snapdragon 782G (6 nm)Qualcomm SM6375 Snapdragon 695 5G (6 nm)
GPUAdreno 642LAdreno 619
OSAndroid 13, OriginOS 3Android 13, ColorOS 13.1
Memory
Card slotNomicroSDXC (uses shared SIM slot)
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
 UFS 2.2-
Main Camera
Dual64 MP, f/1.8, (wide), 1/1.97", 0.7µm, PDAF, OIS Auxiliary lens108 MP, f/1.8, 24mm (wide), 1/1.67", 0.64µm, PDAF Auxiliary lens
FeaturesDual-LED dual-tone flash, HDR, panoramaLED flash, HDR, panorama
Single16 MP, f/2.5, (wide)-
Video4K@30fps, 1080p@30fps1080p@30fps
Selfie camera
Features-HDR, panorama
Single16 MP, f/2.5, (wide)16 MP, f/2.4, (wide), 1.0µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack Yes-
35mm jackYesYes
Loudspeaker YesYes, with stereo speakers
Comms
Bluetooth5.2, A2DP, LE, aptX HD5.1, A2DP, LE, aptX HD
NFCYesNo
PositioningGPS, GLONASS, GALILEO, BDSGPS, GALILEO, GLONASS, BDS, QZSS
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, dual-band
Features
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, gyro, proximity, compass
Battery
Charging120W wired67W wired, 80% in 33 min
Type5000 mAhLi-Po 5000 mAh
Misc
ColorsBlack, Blue, OrangeJade Black, Pearl Blue
ModelsV2270A-
PriceAbout 220 EURAbout 250 EUR

vivo iQOO Z7 (China)

  • Significantly faster Snapdragon 782G processor
  • Blazing-fast 120W wired charging
  • Potentially higher refresh rate display

  • Battery capacity not specified – could be smaller than K11x
  • Limited information on camera capabilities

Oppo K11x

  • More affordable price point
  • Respectable 67W fast charging
  • Potentially better battery life due to less powerful chipset

  • Slower Snapdragon 695 processor
  • Less capable GPU for gaming
  • Longer charging times compared to iQOO Z7

Display Comparison

Neither device's display specifications are provided, so a direct comparison is limited. However, given the iQOO Z7's positioning, it likely features a higher refresh rate panel (potentially 120Hz) compared to the K11x, which is common in this price bracket. The iQOO Z7's display is likely tuned for vibrant colors, catering to a gaming audience. The K11x will likely focus on power efficiency.

Camera Comparison

Without detailed camera specs, analysis is limited. However, the iQOO Z7, being positioned as a gaming-focused device, may prioritize image processing for fast-action shots. The K11x, likely targeting a broader audience, might emphasize balanced image quality across various scenarios. The absence of information regarding sensor sizes and OIS makes a definitive camera comparison impossible, but the iQOO Z7's chipset likely supports more advanced image signal processing capabilities.

Performance

The core difference lies in the chipsets. The iQOO Z7’s Snapdragon 782G (6nm) boasts a more powerful CPU configuration – an octa-core setup with 1x2.7 GHz Cortex-A78, 3x2.4 GHz Cortex-A78, and 4x1.8 GHz Cortex-A55 cores – compared to the Oppo K11x’s Snapdragon 695 (6nm) with 2x2.2 GHz Kryo 660 Gold & 6x1.7 GHz Kryo 660 Silver. This translates to significantly faster application loading times and smoother multitasking on the iQOO Z7. The 782G’s more capable Adreno 642L GPU also provides a substantial advantage in gaming performance, handling higher graphics settings and frame rates. The K11x’s 695 is adequate for casual gaming, but will struggle with more demanding titles.

Battery Life

The iQOO Z7’s 120W wired charging is a standout feature, promising a full charge in under 30 minutes. The Oppo K11x’s 67W charging, while respectable, takes approximately 33 minutes to reach 80%, suggesting a longer full charge time. While battery capacity isn't specified, the iQOO Z7’s faster charging mitigates any potential disadvantage from a slightly smaller battery. The K11x will likely offer longer screen-on time due to the less power-hungry chipset, but the Z7’s charging speed offers a significant convenience factor.

Buying Guide

Buy the vivo iQOO Z7 (China) if you prioritize raw performance for gaming and multitasking, and value the convenience of incredibly fast charging. You'll benefit from a smoother experience with demanding apps and a quicker top-up when battery life runs low. Buy the Oppo K11x if you prioritize a balance of battery life and affordability, and your usage primarily revolves around everyday tasks like social media, browsing, and light gaming. It's a solid choice for budget-conscious users.

Frequently Asked Questions

❓ Will the Snapdragon 695 in the Oppo K11x struggle with graphically intensive games like Genshin Impact?
Yes, the Snapdragon 695 is a mid-range chipset and will likely require significant graphics settings reductions to achieve playable frame rates in demanding games like Genshin Impact. Expect noticeable frame drops and potentially stuttering. The iQOO Z7’s Snapdragon 782G is far better equipped to handle such titles.
❓ How much faster is the 120W charging on the iQOO Z7 compared to the 67W charging on the Oppo K11x in real-world use?
The iQOO Z7’s 120W charging can potentially take a phone from 0% to 100% in around 25-30 minutes, while the Oppo K11x takes approximately 33 minutes to reach 80%, and likely over an hour for a full charge. This means you can get a significant charge boost in a much shorter time with the iQOO Z7, ideal for users who frequently need to top up their battery quickly.
❓ Is the Snapdragon 782G in the iQOO Z7 prone to overheating during extended gaming sessions?
The Snapdragon 782G is a 6nm chip, offering good thermal efficiency. However, sustained gaming will inevitably generate heat. iQOO typically implements effective cooling solutions in their gaming-focused devices, so overheating shouldn't be a major concern, but performance throttling is still possible during prolonged, intense gameplay.