OnePlus Ace 6 vs Xiaomi 14T Pro: A Deep Dive into Performance and Charging

The OnePlus Ace 6 and Xiaomi 14T Pro represent compelling options in the increasingly competitive mid-to-high range smartphone market. The Ace 6 boasts Qualcomm’s cutting-edge Snapdragon 8 Elite, while the 14T Pro counters with MediaTek’s Dimensity 9300+. This comparison dissects their key differences, focusing on performance, charging speeds, and real-world usability to determine which device reigns supreme.
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🏆 Quick Verdict

For users prioritizing raw processing power and the absolute fastest charging, the OnePlus Ace 6 takes the lead. Its Snapdragon 8 Elite, built on a 3nm process, offers a performance edge, and its 120W UFCS charging is incredibly swift. However, the Xiaomi 14T Pro delivers excellent battery life and a bright display, making it a strong contender for those valuing endurance.

PHONES
Phone Names OnePlus Ace 6 Xiaomi 14T Pro
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 4, 5, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 43, 48, 661, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 48, 66
5G bands1, 3, 5, 8, 18, 26, 28A, 38, 40, 41, 48, 66, 77, 78 SA/NSA1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 48, 66, 75, 77, 78 SA/NSA
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
Launch
Announced2025, October 272024, September 26
StatusAvailable. Released 2025, October 30Available. Released 2024, September 26
Body
BuildGlass front (Crystal Shield Glass), glass back, aluminum alloy frameGlass front (Gorilla Glass 5), aluminum frame, glass back (Panda X)
Dimensions163.4 x 77 x 8.3 mm (6.43 x 3.03 x 0.33 in)160.4 x 75.1 x 8.4 mm (6.31 x 2.96 x 0.33 in)
SIMNano-SIM + Nano-SIM· Nano-SIM + eSIM· eSIM + eSIM· Nano-SIM + Nano-SIM
Weight213 g (7.51 oz)209 g (7.37 oz)
Display
ProtectionCrystal Shield GlassCorning Gorilla Glass 5
Resolution1272 x 2800 pixels (~450 ppi density)1220 x 2712 pixels, 20:9 ratio (~446 ppi density)
Size6.83 inches, 113.3 cm2 (~90.1% screen-to-body ratio)6.67 inches, 107.4 cm2 (~89.1% screen-to-body ratio)
TypeLTPO AMOLED, 1B colors, 165Hz, PWM, HDR10+, Dolby Vision, HDR Vivid, 800 nits (typ), 1800 nits (HBM)AMOLED, 68B colors, 144Hz, 3840Hz PWM, Dolby Vision, HDR10+, 1600 nits (HBM), 4000 nits (peak)
Platform
CPUOcta-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)Octa-core (1x3.4 GHz Cortex-X4 & 3x2.85 GHz Cortex-X4 & 4x2.0 GHz Cortex-A720)
ChipsetQualcomm SM8750-AB Snapdragon 8 Elite (3 nm)Mediatek Dimensity 9300+ (4 nm)
GPUAdreno 830Immortalis-G720 MC12
OSAndroid 16, ColorOS 16Android 14, HyperOS
Memory
Card slotNoNo
Internal256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM256GB 12GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 12GB RAM
Main Camera
Dual50 MP, f/1.8, 24mm (wide), PDAF, OIS 8 MP, f/2.2, 16mm, 112˚ (ultrawide), 1/4.0", 1.12µm-
FeaturesColor spectrum sensor, LED flash, HDR, panoramaLeica lens, Ultra HDR, LED flash, HDR, panorama
Triple-50 MP, f/1.6, 23mm (wide), 1/1.31", 1.2µm, PDAF, OIS 50 MP, f/2.0, 60mm (telephoto), 1/2.88", 0.61µm, PDAF, 2.6x optical zoom 12 MP, f/2.2, 15mm (ultrawide), 1/3.06", 1.12µm
Video4K@30/60/120fps, 1080p@30/60/120fps, gyro-EIS, OIS8K@24/30fps, 4K@24/30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, 10-bit Rec. 2020, HDR10+
Selfie camera
FeaturesHDR, panoramaHDR
Single16 MP, f/2.4, 23mm (wide), 1/3", 1.0µm32 MP, f/2.0, 25mm (wide), 1/3.44", 0.64µm
Video1080p@30fps, gyro-EIS4K@30fps, 1080p@30/60fps, HDR10+
Sound
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
Comms
Bluetooth5.4, A2DP, LE, aptX HD, aptX Adaptive, LHDC 55.4, A2DP, LE, LHDC
Infrared portYesYes
NFCYesYes (market/region dependent)
PositioningGPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)GPS (L1+L5), BDS (B1I+B1C+B2a+B2b), GALILEO (E1+E5a+E5b), QZSS (L1+L5), NavIC (L5), GLONASS
RadioNoNo
USBUSB Type-C 2.0USB Type-C 2.0, 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, gyro, proximity, compass
Battery
Charging120W wired, 120W UFCS, 55W PPS, 18W PD, 18W QC, 58% in 20 min, 100% in 43 min Bypass charging120W wired, PD3.0, QC4, 100% in 19 min 50W wireless, 100% in 45 min
TypeSi/C Li-Ion 7800 mAhLi-Po 5000 mAh
Misc
ColorsBlack, White, SilverTitan Gray, Titan Blue, Titan Black
ModelsPLQ1102407FPN8EG
PriceAbout 310 EUR$ 550.00 / £ 498.00 / € 539.99
SAR EU-0.99 W/kg (head)     1.00 W/kg (body)

OnePlus Ace 6

  • Potentially superior CPU performance with Snapdragon 8 Elite
  • Faster charging speeds with 120W UFCS
  • 3nm process for improved thermal efficiency

  • Battery life potentially lower than Xiaomi 14T Pro
  • No wireless charging support

Xiaomi 14T Pro

  • Excellent battery life (12:32h active use)
  • 50W wireless charging support
  • Bright display (1228 nits)

  • 4nm process may result in more thermal throttling
  • CPU performance potentially lower than Snapdragon 8 Elite

Display Comparison

The Xiaomi 14T Pro features a display capable of reaching a measured peak brightness of 1228 nits, ensuring excellent visibility even in direct sunlight. While the Ace 6’s display specs are not provided, the 14T Pro’s brightness is a significant advantage. Both phones likely utilize high refresh rate panels, but the 14T Pro’s brightness gives it an edge for outdoor use. The absence of LTPO information for the Ace 6 means it may not dynamically adjust refresh rates as efficiently as the 14T Pro, potentially impacting battery life.

Camera Comparison

Detailed camera specifications are missing for both devices. However, given their market positioning, we can expect both to feature capable camera systems. The Xiaomi 14T Pro likely prioritizes a versatile setup with a strong main sensor, while the Ace 6 may lean towards a more gaming-focused aesthetic. Without sensor size or aperture information, it’s difficult to definitively assess camera quality, but the presence of OIS on the main sensor would be a crucial factor for both.

Performance

The core of the difference lies in the chipsets. The OnePlus Ace 6’s Snapdragon 8 Elite (3nm) utilizes Qualcomm’s Oryon V2 Phoenix cores – two ‘Phoenix L’ at 4.32 GHz and six ‘Phoenix M’ at 3.53 GHz – promising exceptional performance. This 3nm process should translate to improved thermal efficiency compared to the Xiaomi 14T Pro’s Mediatek Dimensity 9300+ (4nm). The Dimensity 9300+ employs a unique core configuration with one Cortex-X4 at 3.4 GHz, three more Cortex-X4 cores at 2.85 GHz, and four Cortex-A720 cores at 2.0 GHz. While the Dimensity 9300+ is a powerful chip, the Snapdragon 8 Elite’s architecture and smaller node size suggest a potential advantage in sustained performance and reduced throttling under heavy load. The Ace 6’s LPDDR5x RAM will also contribute to faster data access.

Battery Life

The Xiaomi 14T Pro boasts a strong active use score of 12:32h, indicating excellent battery life. While the Ace 6’s battery capacity is unknown, its 120W wired charging (with UFCS, PPS, PD, and QC support) is incredibly fast, achieving 58% charge in 20 minutes and 100% in 43 minutes. The 14T Pro also supports 120W wired charging, reaching 100% in 19 minutes – a slight edge in charging speed. Furthermore, the 14T Pro adds 50W wireless charging, a feature absent on the Ace 6, offering added convenience. The 14T Pro’s longer battery life, combined with fast wired and wireless charging, provides a more versatile charging experience.

Buying Guide

Buy the OnePlus Ace 6 if you need uncompromising performance for demanding tasks like gaming and video editing, and if minimizing charging time is a top priority. Its Snapdragon 8 Elite and 120W charging are geared towards power users. Buy the Xiaomi 14T Pro if you prefer a phone with exceptional battery life, a vibrant display, and a more balanced overall experience. The Dimensity 9300+ provides ample power for everyday use, and the 50W wireless charging adds convenience.

Frequently Asked Questions

❓ Does the Snapdragon 8 Elite in the OnePlus Ace 6 overheat during prolonged gaming sessions?
The Snapdragon 8 Elite’s 3nm process is designed to mitigate thermal throttling. However, sustained peak performance will inevitably generate heat. The Ace 6 likely incorporates advanced cooling solutions to manage temperatures, but extended gaming at maximum settings may still result in some throttling. Real-world testing is needed to determine the extent of this.
❓ How does the Dimensity 9300+'s unique core configuration impact real-world performance in the Xiaomi 14T Pro?
The Dimensity 9300+'s configuration, with multiple Cortex-X4 cores, prioritizes peak performance for demanding tasks. This should translate to smooth multitasking and responsiveness. However, the efficiency of this configuration depends on software optimization and thermal management. While powerful, it may not match the sustained performance of the Snapdragon 8 Elite under heavy load.
❓ Is the 120W charging on both phones safe for long-term battery health?
Both the OnePlus Ace 6 and Xiaomi 14T Pro employ technologies to mitigate the potential impact of fast charging on battery health. The Ace 6 utilizes UFCS and PPS, while the 14T Pro uses advanced charging algorithms. While fast charging can generate heat, these technologies aim to minimize degradation over time. However, consistently using the fastest charging speeds may still slightly reduce long-term battery lifespan compared to slower charging methods.