OnePlus 9RT 5G vs vivo S9: A Deep Dive into Performance and Value

The OnePlus 9RT 5G and vivo S9 represent compelling options in the mid-range smartphone market, but cater to slightly different priorities. The 9RT, leveraging Qualcomm’s Snapdragon 888, aims for raw power, while the vivo S9 focuses on a balanced experience with MediaTek’s Dimensity 1100. This comparison dissects their key differences to help you choose the right device.
Phones Images

🏆 Quick Verdict

For users prioritizing peak performance and faster charging, the OnePlus 9RT 5G is the clear winner. Its Snapdragon 888 chipset delivers a noticeable performance edge, and the 65W charging significantly reduces downtime. However, the vivo S9 remains a strong contender for those seeking a well-rounded experience at a potentially lower price point.

PHONES
Phone Names vivo S9 OnePlus 9RT 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G bands1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41 - Global
5G bands1, 3, 28, 41, 77, 78 SA/NSA1, 3, 5, 8, 28, 40, 41, 78 SA/NSA - Global
SpeedHSPA, LTE, 5GHSPA 42.2/5.76 Mbps, LTE Cat18 1200/200 Mbps, 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 CDMA2000 1x CDMA2000 1xEV-DO
Launch
Announced2021, March 032021, October 13
StatusAvailable. Released 2021, March 12Available. Released 2021, October 19
Body
Build-Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Dimensions158.4 x 73.9 x 7.4 mm (6.24 x 2.91 x 0.29 in)162.2 x 74.6 x 8.3 mm (6.39 x 2.94 x 0.33 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight173 g (6.10 oz)198.5 g (7.02 oz)
Display
Protection-Corning Gorilla Glass 5
Resolution1080 x 2400 pixels, 20:9 ratio (~409 ppi density)1080 x 2400 pixels, 20:9 ratio (~397 ppi density)
Size6.44 inches, 100.1 cm2 (~85.5% screen-to-body ratio)6.62 inches, 106.3 cm2 (~87.9% screen-to-body ratio)
TypeAMOLED, 90Hz, HDR10+AMOLED, 120Hz, HDR10+
 -Always-on display
Platform
CPUOcta-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
ChipsetMediatek Dimensity 1100 (6 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm)
GPUMali-G77 MC9Adreno 660
OSAndroid 11, OriginOS 1.0Android 11, upgradable to Android 13, OxygenOS 13
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
 UFS 3.1UFS 3.1
Main Camera
Dual44 MP, f/2.0, (wide), AF 8 MP, f/2.3, 105˚ (ultrawide)-
FeaturesDual-LED dual-tone flash, HDR, panoramaDual-LED flash, HDR, panorama
Quad-50 MP, f/1.8, 24mm (wide), 1/1.56”, 1.0µm, PDAF, OIS 16 MP, f/2.2, 14mm, 123˚ (ultrawide), 1/3.6", 1.0µm 2 MP (macro)
Single-16 MP, f/2.4, (wide), 1/3.06", 1.0µm
Triple64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF, OIS 8 MP, f/2.2, 120˚, 16mm (ultrawide), 1/4.0", 1.12µm Auxiliary lens-
Video4K@30fps, 1080p@30fps, gyro-EIS4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS
Selfie camera
Dual44 MP, f/2.0, (wide), AF 8 MP, f/2.3, 105˚ (ultrawide)-
FeaturesHDRHDR
Single-16 MP, f/2.4, (wide), 1/3.06", 1.0µm
Video4K@30fps, 1080p@30fps1080p@30fps, gyro-EIS
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes, with stereo speakers
 24-bit/192kHz audio-
Comms
Bluetooth5.2, A2DP, LE, aptX HD5.2, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDSGPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)
RadioNoNo
USBUSB Type-C, OTGUSB Type-C 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/6, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging33W wired, 66% in 30 min65W wired, 100% in 29 min
Type4000 mAhLi-Po 4500 mAh
Misc
ColorsBlack, White, Gradient BlueHacker Black, Nano Silver, Blue
ModelsV2072AMT2110, MT2111
PriceAbout 390 EURAbout 590 EUR

vivo S9

  • Faster Snapdragon 888 processor
  • 65W SuperVOOC charging for rapid refills
  • Potentially better camera image processing

  • May run hotter under sustained load
  • Potentially higher price point

OnePlus 9RT 5G

  • Balanced performance with Dimensity 1100
  • Sleek and stylish design (based on vivo’s brand image)
  • Potentially more affordable

  • Slower 33W charging
  • Less powerful processor for demanding tasks

Display Comparison

While both phones likely feature AMOLED panels (based on market positioning), specific details like peak brightness and refresh rates are missing. However, the core difference lies in the chipsets powering the displays. The Snapdragon 888 in the 9RT has a more powerful ISP, potentially leading to better image processing for display output. Bezels are likely comparable given the similar target market. Color accuracy will depend on software calibration, a factor not specified in the provided data.

Camera Comparison

Without sensor size or aperture information, a direct camera comparison is limited. However, the Snapdragon 888’s superior ISP in the OnePlus 9RT 5G offers more advanced image processing capabilities, including better noise reduction and dynamic range. This translates to potentially sharper and more detailed photos, especially in challenging lighting conditions. The 9RT’s ISP also supports faster autofocus and more sophisticated computational photography features. The vivo S9 likely relies on MediaTek’s image signal processor, which is capable but generally lags behind Qualcomm’s offerings.

Performance

The OnePlus 9RT 5G’s Qualcomm Snapdragon 888 5G (5nm) demonstrably outperforms the vivo S9’s MediaTek Dimensity 1100 (6nm) in raw CPU and GPU power. The Snapdragon 888’s Cortex-X1 prime core, clocked at 2.84 GHz, provides a significant advantage over the Dimensity 1100’s Cortex-A78 cores at 2.6 GHz. The 5nm fabrication process of the Snapdragon 888 also contributes to better thermal efficiency, potentially mitigating throttling during sustained workloads. While the Dimensity 1100 is no slouch, the 9RT is the superior choice for demanding tasks like gaming and video editing. The 9RT likely utilizes LPDDR5 RAM, further enhancing performance compared to the S9's likely LPDDR4X.

Battery Life

The vivo S9’s 33W charging is significantly slower than the OnePlus 9RT 5G’s 65W charging. The 9RT can reach 100% charge in just 29 minutes, while the S9 takes approximately 30 minutes to reach 66%. While battery capacity isn’t specified, the faster charging of the 9RT is a major convenience factor. The Snapdragon 888’s 5nm process also contributes to better power efficiency, potentially offsetting any capacity difference. Users who frequently top up their phones will greatly benefit from the 9RT’s charging speed.

Buying Guide

Buy the vivo S9 if you need a reliable daily driver with a good balance of features and a focus on design. It’s ideal for social media users, casual gamers, and those who value a sleek aesthetic. Buy the OnePlus 9RT 5G if you prioritize gaming, demanding applications, and rapid charging. It’s the better choice for power users and anyone who frequently pushes their phone to its limits.

Frequently Asked Questions

❓ Will the Snapdragon 888 in the OnePlus 9RT 5G overheat during prolonged gaming sessions?
The Snapdragon 888 is known to generate heat under sustained load. However, the OnePlus 9RT 5G likely incorporates thermal management solutions like vapor chamber cooling to mitigate throttling. While some heat is expected, it shouldn't significantly impact performance for most gaming scenarios. The 5nm process helps compared to earlier Snapdragon generations.
❓ Is the Dimensity 1100 in the vivo S9 capable of running demanding games like Genshin Impact?
The Dimensity 1100 can run Genshin Impact, but you may need to lower graphics settings to maintain a stable frame rate. It’s not as powerful as the Snapdragon 888, so expect some compromises in visual fidelity. The experience will be playable, but not optimal for users seeking the highest possible graphics settings.
❓ How does the charging speed difference impact daily use between the two phones?
The 65W charging on the OnePlus 9RT 5G is a game-changer for users who frequently need to top up their battery. A quick 10-minute charge can provide hours of usage, while the vivo S9’s 33W charging requires a significantly longer time to achieve a similar level of charge. This difference is particularly noticeable for users with busy lifestyles.