vivo iQOO Neo9S Pro+ vs Xiaomi Redmi K70 Pro: A Deep Dive into Snapdragon 8 Gen 3 Power

The vivo iQOO Neo9S Pro+ and Xiaomi Redmi K70 Pro represent the cutting edge of Android flagship performance, both powered by Qualcomm’s Snapdragon 8 Gen 3. This comparison isn’t about raw power – both phones deliver that in spades – but about how each manufacturer optimizes that power for real-world use, particularly focusing on charging speed and potential thermal characteristics. We’ll dissect the nuances to help you choose the right device.
Phones Images

🏆 Quick Verdict

For the average user prioritizing the absolute fastest charging and potentially slightly better sustained performance, the vivo iQOO Neo9S Pro+ edges out the Redmi K70 Pro. While both reach 100% quickly, the iQOO’s 28-minute full charge is marginally faster. However, the Redmi K70 Pro remains a compelling option, offering similar performance at a potentially lower price point.

PHONES
Phone Names vivo iQOO Neo9S Pro+ Xiaomi Redmi K70 Pro
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 2100
4G bands1, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 411, 3, 4, 5, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66
5G bands1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA1, 3, 5, 8, 28, 38, 41, 48, 66, 77, 78 SA/NSA
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / CDMA / HSPA / CDMA2000 / LTE / 5G
Launch
Announced2024, July 112023, November 29
StatusAvailable. Released 2024, July 16Available. Released 2023, November 29
Body
Dimensions163.5 x 75.7 x 8 mm or 8.3 mm160.9 x 75 x 8.2 mm (6.33 x 2.95 x 0.32 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight193 g or 198 g (6.81 oz)209 g (7.37 oz)
Display
Resolution1260 x 2800 pixels, 20:9 ratio (~453 ppi density)1440 x 3200 pixels, 20:9 ratio (~526 ppi density)
Size6.78 inches, 111.0 cm2 (~89.7% screen-to-body ratio)6.67 inches, 107.4 cm2 (~89.0% screen-to-body ratio)
TypeLTPO AMOLED, 1B colors, 144Hz, HDR10+, 1400 nits (HBM)OLED, 68B colors, 120Hz, Dolby Vision, HDR10+, 4000 nits (peak)
Platform
CPUOcta-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
ChipsetQualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
GPUAdreno 750Adreno 750
OSAndroid 14, upgradable to Android 15, OriginOS 5Android 14, HyperOS
Memory
Card slotNoNo
Internal256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 24GB RAM
Main Camera
Dual50 MP, f/1.9, (wide), 1/1.56", PDAF, OIS 50 MP, f/2.0, 119˚ (ultrawide), 1/2.76", 0.64µm, AF-
FeaturesLED flash, panorama, HDRColor spectrum sensor, LED flash, HDR, panorama
Triple-50 MP, f/1.6, (wide), 1/1.55", 1.0µm, PDAF, OIS 50 MP, (telephoto), PDAF, 2x optical zoom 12 MP, (ultrawide)
Video8K, 4K, 1080p, gyro-EIS8K@24fps, 4K@24/30/60fps, 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS
Selfie camera
Features-HDR
Single16 MP, f/2.5, (wide)16 MP, (wide)
Video1080p@30fps1080p@30/60fps, gyro-EIS
Sound
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
Comms
Bluetooth5.4, A2DP, LE, aptX HD, aptX Adaptive, aptX Lossless, LHDC5.4, A2DP, LE, aptX HD, aptX Adaptive, aptX Lossless
Infrared portYesYes
NFCYesYes
PositioningGPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), GLONASSGPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6/7, dual-bandWi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, proximity, gyro, compass
Battery
Charging120W wired, 70% in 17 min, 100% in 28 min Reverse wired120W wired, PD3.0, QC3+, 100% in 18 min
Type5500 mAhLi-Po 5000 mAh
Misc
ColorsBlue/White, Black, WhiteBlack, Silver, Blue/Green, Lamborgini Green, Lamborgini Yellow
ModelsV2403A23117RK66C
PriceAbout 380 EURAbout 430 EUR

vivo iQOO Neo9S Pro+

  • Slightly faster 120W charging (28 minutes to full)
  • Potentially superior thermal management for sustained performance
  • Aggressive cooling solutions historically implemented by iQOO

  • Software experience may be more heavily customized
  • Camera details currently unknown

Xiaomi Redmi K70 Pro

  • Competitive price point expected
  • Potentially cleaner software experience
  • Fast 120W charging (18 minutes to full)

  • Charging is marginally slower than iQOO
  • Thermal performance needs further evaluation

Display Comparison

Both devices are expected to feature high-refresh-rate AMOLED displays, though specific details like peak brightness and panel technology (LTPO) are not provided. However, given the flagship positioning, both will likely offer excellent color accuracy and viewing angles. The absence of display specs necessitates focusing on other areas for differentiation.

Camera Comparison

Camera specifications are absent from the provided data. However, given the competitive landscape, both phones are expected to feature multi-camera systems. The presence of a large main sensor with Optical Image Stabilization (OIS) will be crucial for low-light performance. Image processing style will likely differ – iQOO often favors vibrant, saturated colors, while Xiaomi tends towards a more natural look. The absence of details prevents a meaningful comparison beyond speculation.

Performance

Both the iQOO Neo9S Pro+ and Redmi K70 Pro utilize the Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4nm). The CPU configuration is identical – 1x3.3 GHz Cortex-X4, 3x3.2 GHz Cortex-A720, 2x3.0 GHz Cortex-A720, and 2x2.3 GHz Cortex-A520. This means raw CPU performance will be nearly indistinguishable. The key differentiator will be thermal management. The 4nm process node is efficient, but sustained loads will generate heat. iQOO’s history suggests aggressive cooling solutions, potentially allowing for longer peak performance before throttling, while Xiaomi’s implementation remains to be seen. RAM speed (likely LPDDR5x) is also a critical factor, but not specified in the provided data.

Battery Life

Both devices boast 120W wired charging, a significant advantage over slower charging standards. The iQOO Neo9S Pro+ claims 70% charge in 17 minutes and 100% in 28 minutes, while the Redmi K70 Pro reaches 100% in 18 minutes. This 10-minute difference, while measurable, is unlikely to be a major deciding factor for most users. The battery capacity (mAh) is not specified, but the fast charging mitigates the impact of a potentially smaller battery. Both support reverse wired charging, adding to their versatility.

Buying Guide

Buy the vivo iQOO Neo9S Pro+ if you need the absolute fastest charging speeds available and prioritize sustained gaming performance, potentially benefiting from optimized thermal management. Buy the Xiaomi Redmi K70 Pro if you prefer a potentially more streamlined software experience and are seeking flagship-level performance at a competitive price, accepting a slightly slower (but still incredibly fast) charging time.

Frequently Asked Questions

❓ Will the Snapdragon 8 Gen 3 in either phone overheat during extended gaming sessions?
While the Snapdragon 8 Gen 3 is efficient, sustained gaming will generate heat. iQOO has a history of implementing advanced cooling solutions, potentially giving the Neo9S Pro+ an edge in maintaining peak performance for longer durations. The Redmi K70 Pro’s thermal performance remains to be tested, but Xiaomi typically employs effective cooling designs.
❓ Does the 120W charging significantly impact battery health over time?
Modern smartphones employ sophisticated charging algorithms to mitigate the impact of fast charging on battery health. While some degradation is inevitable over years of use, the 120W charging on both devices is designed to minimize this effect. Both phones likely incorporate features like optimized charging curves and temperature control to protect the battery.
❓ Is the difference in charging time (28 minutes vs 18 minutes) noticeable in everyday use?
For most users, the 10-minute difference in reaching a full charge is unlikely to be a significant inconvenience. Both phones offer incredibly fast charging, topping up the battery quickly enough to minimize downtime. The iQOO Neo9S Pro+ offers a slight advantage for those who absolutely need the fastest possible charging.