vivo Y400 Pro vs OnePlus 8T: A Detailed Comparison of Performance and Value

The OnePlus 8T remains a popular choice due to its established reputation and solid performance, but the newer vivo Y400 Pro enters the arena with a more modern chipset and significantly faster charging. This comparison dissects the key differences between these two devices, helping you determine which offers the best value in today’s market.
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🏆 Quick Verdict

For most users, the vivo Y400 Pro emerges as the better buy. Its Mediatek Dimensity 7300 offers comparable, and in some cases superior, performance to the Snapdragon 865, coupled with a blazing-fast 90W charging system. While the OnePlus 8T boasts a proven track record, the Y400 Pro delivers a more future-proof experience.

PHONES
Phone Names vivo Y400 Pro OnePlus 8T
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G bands1, 3, 5, 8, 28, 38, 40, 411, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 34, 38, 39, 40, 41, 42, 66 - EU
5G bands1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA1, 3, 7, 28, 41, 78 SA/NSA - EU
SpeedHSPA, LTE, 5GHSPA 42.2/5.76 Mbps, LTE (5CA) Cat18 1200/200 Mbps, 5G 7.5 Gbps DL
TechnologyGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / LTE / 5G
 -41, 78, 79 SA/NSA - CN
Launch
Announced2025, June 202020, October 14
StatusAvailable. Released 2025, June 27Available. Released 2020, October 16
Body
BuildGlass front, plastic back, plastic frameGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Dimensions163.8 x 75.0 x 7.5 or 7.7 mm160.7 x 74.1 x 8.4 mm (6.33 x 2.92 x 0.33 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight182 g (6.42 oz)188 g (6.63 oz)
Display
Protection-Corning Gorilla Glass 5
Resolution1080 x 2392 pixels (~388 ppi density)1080 x 2400 pixels, 20:9 ratio (~402 ppi density)
Size6.77 inches, 110.9 cm2 (~90.3% screen-to-body ratio)6.55 inches, 103.6 cm2 (~87.0% screen-to-body ratio)
TypeAMOLED, 120Hz, HDR, 1300 nits (HBM), 4500 nits (peak)Fluid AMOLED, 120Hz, HDR10+
 -Always-on display
Platform
CPUOcta-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)Octa-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55)
ChipsetMediatek Dimensity 7300 (4 nm)Qualcomm SM8250 Snapdragon 865 5G (7 nm+)
GPUMali-G615 MC2Adreno 650
OSAndroid 15, Funtouch 15Android 11, upgradable to Android 14, OxygenOS 14
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM128GB 8GB RAM, 256GB 12GB RAM
 -UFS 3.1
Main Camera
Dual50 MP, f/1.8, (wide), 1/1.95", 0.8µm, PDAF Auxiliary lens-
FeaturesRing-LED flash, panorama, HDRDual-LED flash, HDR, panorama
Quad-48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF, OIS 16 MP, f/2.2, 14mm, 123˚ (ultrawide), 1/3.6", 1.0µm 5 MP (macro) 2 MP, f/2.4, (monochrome)
Video4K@30fps, 1080p@30fps, gyro-EIS4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS
Selfie camera
Features-HDR
Single32 MP, f/2.5, (wide)16 MP, f/2.4, (wide), 1/3.06", 1.0µm
Video4K@30fps, 1080p@30fps1080p@30fps, gyro-EIS
Sound
3.5mm jack -No
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
Comms
Bluetooth5.4, A2DP, LE5.1, A2DP, LE, aptX HD
Infrared portYes-
NFCNoYes
PositioningGPS, GLONASS, GALILEO, BDS, QZSSGPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C 3.1, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-bandWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNA
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass, barometer (market dependant)
Battery
Charging90W wired, 50% in 19 min 6W reverse wired65W wired, 100% in 39 min
TypeLi-Ion 5500 mAhLi-Po 4500 mAh
Misc
ColorsFest Gold, Freestyle White, Nebula PurpleAquamarine Green, Lunar Silver, Cyberpunk 2077 Edition
Models-KB2001, KB2000, KB2003, KB2005
Price₹ 24,999€ 130.75
SAR0.90 W/kg (head)-
SAR EU0.85 W/kg (head)-
Tests
Battery life- Endurance rating 104h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -24.0 LUFS (Very good)
Performance- AnTuTu: 586000 (v8) GeekBench: 3126 (v5.1) GFXBench: 46fps (ES 3.1 onscreen)

vivo Y400 Pro

  • Significantly faster 90W charging
  • More modern and efficient Dimensity 7300 chipset
  • Potentially better sustained performance due to 4nm process

  • Display specifications currently unknown
  • Brand recognition not as strong as OnePlus

OnePlus 8T

  • Proven track record and established software experience
  • Good display brightness (802 nits)
  • Solid battery endurance (104 hours)

  • Older Snapdragon 865 chipset
  • Slower 65W charging

Display Comparison

The OnePlus 8T’s display achieves a measured peak brightness of 802 nits, providing good visibility outdoors. However, the vivo Y400 Pro’s display specifications are currently unavailable, making a direct brightness comparison difficult. Given the Y400 Pro’s positioning, it’s likely to offer a comparable, if not slightly lower, peak brightness. Both devices feature an 'infinite' contrast ratio, typical of AMOLED panels, but without knowing the Y400 Pro’s panel technology (LTPO or not), it’s hard to assess potential power savings. The 8T’s established display quality is a known quantity, while the Y400 Pro remains an unknown.

Camera Comparison

Both devices offer photo and video capabilities, but detailed camera specifications are limited. Without knowing sensor sizes, apertures, or image processing algorithms, a direct comparison is challenging. The OnePlus 8T’s camera system is known to be capable, but the Y400 Pro’s potential is unknown. It’s crucial to note that the presence of a 'photo/video' feature on both phones is insufficient for a meaningful comparison; sensor size and image processing are key differentiators. We can assume both phones will include standard features like HDR and night mode, but the quality of these implementations will vary.

Performance

The vivo Y400 Pro’s Mediatek Dimensity 7300 (4nm) represents a significant architectural leap over the OnePlus 8T’s Snapdragon 865 (7nm+). The Dimensity 7300 utilizes newer Cortex-A78 cores clocked at 2.5 GHz, alongside more efficient Cortex-A55 cores, compared to the 8T’s mix of A77 and A55 cores. While the Snapdragon 865’s prime core is clocked higher at 2.84 GHz, the Dimensity 7300’s more modern architecture and smaller process node generally translate to better sustained performance and thermal efficiency. This means the Y400 Pro is less likely to throttle under prolonged load, benefiting gamers and power users. The Y400 Pro’s 4nm process also contributes to improved battery life.

Battery Life

The OnePlus 8T boasts an endurance rating of 104 hours, a testament to its efficient power management. The vivo Y400 Pro’s battery capacity is unknown, but its 90W wired charging significantly outperforms the 8T’s 65W charging. The Y400 Pro can reach 50% charge in just 19 minutes, while the 8T requires 39 minutes for a full charge. This difference in charging speed is a major advantage for the Y400 Pro, especially for users who frequently need to top up their battery. Even if the Y400 Pro has a slightly smaller battery capacity, the faster charging could offset this difference in real-world usage.

Buying Guide

Buy the vivo Y400 Pro if you prioritize fast charging, a modern processor for efficient multitasking and gaming, and are looking for a phone that feels current. Buy the OnePlus 8T if you value a well-established brand with a known software experience, and are comfortable with a slightly older chipset and slower charging speeds, potentially at a lower price point.

Frequently Asked Questions

❓ Will the Dimensity 7300 in the vivo Y400 Pro handle demanding games like Genshin Impact smoothly?
The Dimensity 7300 is a capable chipset that should handle Genshin Impact at medium to high settings. Its newer architecture and efficient thermal management will help prevent throttling during extended gaming sessions, providing a smoother experience compared to the older Snapdragon 865 in the OnePlus 8T.
❓ How much faster is the 90W charging on the vivo Y400 Pro compared to the OnePlus 8T in real-world use?
The 90W charging on the Y400 Pro is significantly faster. While the OnePlus 8T takes 39 minutes for a full charge, the Y400 Pro reaches 50% in just 19 minutes. This means you can quickly top up your battery during short breaks, making it ideal for users who are always on the go.
❓ Does the OnePlus 8T still receive software updates and security patches?
OnePlus typically provides a good level of software support for its devices. While the 8T is an older model, it should continue to receive security patches for a reasonable period. However, major Android version updates may be limited.
❓ Is the Snapdragon 865 in the OnePlus 8T still a viable option for everyday tasks and moderate gaming?
Yes, the Snapdragon 865 remains a capable chipset for everyday tasks like browsing, social media, and streaming. It can also handle moderate gaming, but it may struggle with the most demanding titles at higher settings compared to the newer Dimensity 7300.