vivo Y9s vs. Oppo F11 Pro: Which Mid-Range Phone Reigns Supreme?

The vivo Y9s and Oppo F11 Pro represent a fascinating intersection of value and features in the mid-range smartphone market. Both devices aimed to deliver a compelling experience without breaking the bank, but they took different approaches to achieving this. This comparison dissects their key specifications to determine which phone offers the most for your money, focusing on performance, battery life, and overall usability.
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🏆 Quick Verdict

For the average user prioritizing consistent performance and a slightly faster charging experience, the vivo Y9s emerges as the better choice. Its Snapdragon 665 chipset, built on a more efficient 11nm process, offers a smoother experience in everyday tasks and light gaming compared to the Oppo F11 Pro’s Helio P70.

PHONES
Phone Names vivo Y9s Oppo F11 Pro
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100HSDPA 850 / 900 / 2100
4G bands1, 3, 5, 8, 34, 38, 39, 40, 411, 3, 5, 7, 8, 20, 28, 38, 40, 41 - V1
SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE (2CA) Cat7 300/50 Mbps
TechnologyGSM / CDMA / HSPA / LTEGSM / HSPA / LTE
 CDMA 800 & TD-SCDMA1, 3, 5, 8, 38, 40, 41 - V3
Launch
Announced2019, December. Released 2019, December2019, March. Released 2019, March
StatusDiscontinuedDiscontinued
Body
BuildGlass front, glass back, aluminum frameGlass front, plastic back, plastic frame
Dimensions159.3 x 75.2 x 8.7 mm (6.27 x 2.96 x 0.34 in)161.3 x 76.1 x 8.8 mm (6.35 x 3.00 x 0.35 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight186.7 g (6.60 oz)190 g (6.70 oz)
Display
Resolution1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~397 ppi density)
Size6.38 inches, 99.9 cm2 (~83.4% screen-to-body ratio)6.53 inches, 103.6 cm2 (~84.4% screen-to-body ratio)
TypeSuper AMOLEDIPS LCD
Platform
CPUOcta-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
ChipsetQualcomm SDM665 Snapdragon 665 (11 nm)Mediatek MT6771 Helio P70 (12 nm)
GPUAdreno 610Mali-G72 MP3
OSAndroid 9.0 (Pie), Funtouch 9Android 9.0 (Pie), ColorOS 6
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (uses shared SIM slot)
Internal128GB 8GB RAM64GB 4GB RAM, 64GB 6GB RAM, 128GB 6GB RAM
 -eMMC 5.1
Main Camera
Dual-48 MP, f/1.8, (wide), 1/2.25", 0.8µm, PDAF Auxiliary lens
FeaturesLED flash, HDR, panoramaLED flash, HDR, panorama
Quad48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm 2 MP (macro) Auxiliary lens-
Video1080p@30fps1080p@30fps
Selfie camera
FeaturesHDRHDR
Single32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µmMotorized pop-up 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE4.2, A2DP, LE
NFCNoNo
PositioningGPS, GLONASS, BDSGPS, GLONASS, BDS
RadioFM radioFM radio
USBUSB Type-C 2.0, OTGmicroUSB 2.0, 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 (under display, optical), accelerometer, gyro, proximity, compassFingerprint (rear-mounted), accelerometer, proximity, compass
Battery
Charging18W wired20W wired
Type4500 mAh, non-removableLi-Po 4000 mAh, non-removable
Misc
ColorsFancy Sky, Knight Black, Nebula BlueThunder Black, Aurora Green
ModelsV1945A, V1945TCPH1969, CPH2209, CPH1987
PriceAbout 260 EURAbout 320 EUR
Tests
Audio quality- Noise -93.4dB / Crosstalk -92.9dB
Battery life- Endurance rating 109h
Camera- Photo / Video
Display- Contrast ratio: 1392:1 (nominal), 2.987 (sunlight)
Loudspeaker- Voice 67dB / Noise 72dB / Ring 80dB
Performance- AnTuTu: 150218 (v7) GeekBench: 6020 (v4.4) GFXBench: 7.4fps (ES 3.1 onscreen)

vivo Y9s

  • More efficient Snapdragon 665 chipset
  • Potentially better sustained performance
  • Qualcomm’s superior modem technology

  • Slower 18W charging
  • Limited camera specification details

Oppo F11 Pro

  • Slightly faster 20W charging
  • Identical display contrast ratio to vivo Y9s
  • Comparable battery endurance rating

  • Less efficient Helio P70 chipset
  • Potential for thermal throttling under load
  • Limited camera specification details

Display Comparison

Both the vivo Y9s and Oppo F11 Pro share identical display specifications: a contrast ratio of 1392:1 (nominal) and 2.987 (sunlight). This suggests a similar viewing experience in both indoor and outdoor conditions. However, the lack of detailed information regarding panel type (IPS vs AMOLED) and resolution prevents a deeper analysis. The shared contrast ratio indicates a comparable level of black depth and color vibrancy, but real-world performance could vary based on calibration.

Camera Comparison

Both phones are listed as having 'Photo / Video' capabilities, but lack specific details regarding sensor size, aperture, or features like Optical Image Stabilization (OIS). Without this information, a direct comparison is difficult. However, given the market positioning of both devices, it’s likely they feature similar-quality camera setups focused on providing acceptable results in good lighting conditions. The absence of details suggests neither phone prioritizes advanced camera features or low-light performance. We can assume both rely heavily on software processing to enhance image quality.

Performance

The core difference lies in the chipsets. The vivo Y9s utilizes the Qualcomm Snapdragon 665, fabricated on an 11nm process, while the Oppo F11 Pro features the MediaTek Helio P70, built on a 12nm process. While the Helio P70’s Cortex-A73 cores boast a slightly higher clock speed (2.1 GHz vs 2.0 GHz), the Snapdragon 665’s more efficient manufacturing process and optimized Kryo cores generally translate to better sustained performance and thermal management. This means the Y9s is less likely to throttle under prolonged gaming or heavy multitasking. The Snapdragon 665 also benefits from Qualcomm’s superior modem technology, potentially offering more reliable network connectivity.

Battery Life

Both the vivo Y9s and Oppo F11 Pro achieve an endurance rating of 109 hours, indicating comparable battery life under similar usage patterns. However, they differ in charging speeds: the Oppo F11 Pro supports 20W wired charging, while the vivo Y9s is limited to 18W. This 2W difference translates to a slightly faster 0-100% charge time for the Oppo F11 Pro, but the overall impact on daily usage is minimal given the similar battery endurance ratings. The more efficient Snapdragon 665 in the Y9s may contribute to slightly better real-world battery longevity despite the slower charging.

Buying Guide

Buy the vivo Y9s if you need a phone for daily tasks, social media, and casual gaming, and value a chipset known for its stability and power efficiency. Buy the Oppo F11 Pro if you prioritize extended battery life and a slightly higher contrast ratio in display, and are willing to accept potentially less consistent performance under sustained load.

Frequently Asked Questions

❓ Will the Helio P70 in the Oppo F11 Pro struggle with demanding games like PUBG Mobile?
The Helio P70 can run PUBG Mobile, but you may experience frame drops and stuttering, especially on higher graphics settings. The Snapdragon 665 in the vivo Y9s is better equipped to handle sustained gaming loads due to its more efficient architecture and thermal management.
❓ Does the lack of OIS on either phone significantly impact photo quality?
Without OIS, both phones will struggle to capture sharp images in low-light conditions or when shooting handheld video. Expect some blurriness and noise in these scenarios. The image stabilization will rely entirely on software processing, which is less effective than hardware-based OIS.
❓ How long will it take to fully charge each phone from 0%?
The Oppo F11 Pro’s 20W charging will likely take around 1 hour and 45 minutes to 2 hours for a full charge. The vivo Y9s’s 18W charging will add approximately 15-30 minutes to that timeframe.
❓ Is the difference between the 11nm and 12nm process nodes significant in real-world usage?
Yes, the 11nm process (Snapdragon 665) is generally more efficient than the 12nm process (Helio P70). This translates to lower power consumption, less heat generation, and potentially better sustained performance, especially during demanding tasks.