Oppo Ace2 vs OnePlus 8 Pro: A Deep Dive into Flagship Performance and Value

The Oppo Ace2 and OnePlus 8 Pro both launched with the Snapdragon 865, representing the peak of Android performance in 2020. However, they targeted slightly different audiences. The Ace2 prioritized charging speed and aggressive value, while the OnePlus 8 Pro aimed for a more polished, all-around flagship experience. With the Ace2 now available at compelling prices, a direct comparison is more relevant than ever.
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🏆 Quick Verdict

For the average user prioritizing rapid charging and maximizing value, the Oppo Ace2 is the clear winner. Its 65W wired and 40W wireless charging significantly outperform the OnePlus 8 Pro’s 30W offerings. However, the OnePlus 8 Pro’s refined software and potentially longer-term software support make it a strong contender for those willing to pay a premium.

PHONES
Phone Names Oppo Ace2 OnePlus 8 Pro
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 34, 38, 39, 40, 41 - China1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 34, 38, 39, 40, 41, 42, 46, 66 - EU
5G bands1, 3, 41, 78, 79 SA/NSA - China1, 3, 7, 28, 78 SA/NSA - EU
SpeedHSPA, LTE, 5GHSPA 42.2/5.76 Mbps, LTE (5CA) Cat18 1200/150 Mbps, 5G 7.5 Gbps DL
TechnologyGSM / CDMA / HSPA / EVDO / LTE / 5GGSM / CDMA / HSPA / LTE / 5G
 CDMA2000 1xEV-DO 78 SA/NSA - IN
Launch
Announced2020, April 13. Released 2020, April 202020, April 14
StatusDiscontinuedAvailable. Released 2020, April 21
Body
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frameGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Dimensions160 x 75.4 x 8.6 mm (6.30 x 2.97 x 0.34 in)165.3 x 74.4 x 8.5 mm (6.51 x 2.93 x 0.33 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight186 g (6.56 oz)199 g (7.02 oz)
 -IP68 dust/water resistant
Display
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass 5
Resolution1080 x 2400 pixels, 20:9 ratio (~402 ppi density)1440 x 3168 pixels (~513 ppi density)
Size6.55 inches, 103.6 cm2 (~85.9% screen-to-body ratio)6.78 inches, 111.7 cm2 (~90.8% screen-to-body ratio)
TypeAMOLED, 90Hz, HDR10+, 500 nits (typ)Fluid AMOLED, 1B colors, 120Hz, HDR10+
Platform
CPUOcta-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55)Octa-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55)
ChipsetQualcomm SM8250 Snapdragon 865 5G (7 nm+)Qualcomm SM8250 Snapdragon 865 5G (7 nm+)
GPUAdreno 650Adreno 650
OSAndroid 10, ColorOS 7.1Android 10, upgradable to Android 13, OxygenOS 13
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM128GB 8GB RAM, 256GB 12GB RAM
 UFS 3.0UFS 3.0
Main Camera
FeaturesLED flash, HDR, panoramaLaser AF, Dual-LED flash, HDR, panorama
Quad48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm, AF Auxiliary lenses48 MP, f/1.8, 25mm (wide), 1/1.43", 1.12µm, multi-directional PDAF, OIS 8 MP, f/2.4, (telephoto), 1/1.0µm, PDAF, OIS, 3x optical zoom 48 MP, f/2.2, 14mm, 116˚ (ultrawide), 1/2.0", 0.8µm, PDAF 5 MP, f/2.4, (Color filter camera)
Video4K@30/60fps, 1080p@30/60/240fps; gyro-EIS4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS
Selfie camera
FeaturesHDRHDR
Single16 MP, f/2.4, 29mm (wide), 1/3.06", 1.0µm16 MP, f/2.5, (wide), 1/3.06", 1.0µm
Video1080p@30fps1080p@30fps, gyro-EIS
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
Comms
Bluetooth5.1, A2DP, LE, aptX HD5.1, A2DP, LE, aptX HD
NFCYesYes
PositioningGPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5)GPS (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/6, dual-band, Wi-Fi DirectWi-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
Battery
Charging65W wired, 100% in 30 min 40W wireless, 100% in 56 min 10W wireless reversed30W wired, 50% in 23 min 30W wireless, 50% in 30 min 3W reverse wireless
TypeLi-Po 4000 mAhLi-Po 4510 mAh, non-removable
Misc
ColorsAurora Silver, Moon Rock Grey, Fantasy PurpleGlacial Green, Ultramarine Blue, Onyx Black
ModelsPDHM00IN2023, IN2020, IN2021, IN2025
PriceAbout 520 EURAbout 310 EUR
Pricing
128GB 8GB RAM-$ 428.39
256GB 12GB RAM-$ 853.51
RENEWED-$ 486.00
Tests
Battery life- Endurance rating 103h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -23.5 LUFS (Very good)
Performance- AnTuTu: 573276 (v8) GeekBench: 3374 (v5.1) GFXBench: 24fps (ES 3.1 onscreen)

Oppo Ace2

  • Significantly faster wired and wireless charging
  • More powerful reverse wireless charging
  • Potentially better value for money

  • Potentially less refined software experience
  • Likely shorter software support lifespan

OnePlus 8 Pro

  • Smoother, more polished software experience
  • Potentially longer software support
  • Likely superior thermal management

  • Slower charging speeds (wired and wireless)
  • Higher price point

Display Comparison

Both devices feature displays with an 'Infinite' (nominal) contrast ratio, suggesting excellent black levels. However, the context data lacks specific details like peak brightness or refresh rate. Given the OnePlus 8 Pro’s positioning as a premium device, it likely boasts a higher peak brightness and potentially a 120Hz refresh rate (based on market knowledge), offering a more vibrant and fluid visual experience. The Ace2, while still excellent, likely targets a more cost-effective panel solution.

Camera Comparison

The provided data is insufficient to draw definitive conclusions about camera performance. Both phones are described as having 'Photo / Video' capabilities, but lack sensor size, aperture, or OIS details. Given OnePlus’s history, the 8 Pro likely features a more sophisticated camera system with larger sensors and advanced image processing algorithms. The Ace2, while capable, likely prioritizes value over cutting-edge camera technology. The absence of any mention of a telephoto lens on the Ace2 suggests a potential disadvantage in zoom capabilities compared to the 8 Pro.

Performance

Both the Oppo Ace2 and OnePlus 8 Pro are powered by the Qualcomm SM8250 Snapdragon 865 5G (7 nm+), utilizing the same octa-core CPU configuration. This means raw processing power will be nearly identical for most tasks. The key differentiator will be thermal management. While both phones can sustain peak performance for a limited time, the OnePlus 8 Pro’s larger chassis and potentially more sophisticated cooling system may allow it to maintain higher clock speeds for longer durations during demanding tasks like gaming. However, the 7nm+ process node on the Snapdragon 865 is efficient, minimizing throttling on both devices.

Battery Life

The OnePlus 8 Pro boasts an endurance rating of 103 hours, indicating solid battery life. However, the Oppo Ace2’s charging capabilities are its standout feature. The 65W wired charging can fully charge the battery in just 30 minutes, while the 40W wireless charging reaches 100% in 56 minutes. In contrast, the OnePlus 8 Pro takes 23 minutes to reach 50% with 30W wired charging and 30 minutes for 50% with 30W wireless. This difference in charging speed is substantial and caters to users who prioritize convenience and minimal downtime. The Ace2 also offers 10W reverse wireless charging, compared to the 8 Pro’s 3W, allowing for faster charging of accessories.

Buying Guide

Buy the Oppo Ace2 if you need blazing-fast charging, both wired and wireless, and are comfortable with a potentially less refined software experience. It’s ideal for power users who frequently top up their phones throughout the day. Buy the OnePlus 8 Pro if you prefer a smoother, more polished software experience, value long-term software support, and are less concerned with achieving the absolute fastest charging speeds. It’s the better choice for users who prioritize a premium, hassle-free experience.

Frequently Asked Questions

❓ How much faster is the Oppo Ace2's charging compared to the OnePlus 8 Pro in a real-world scenario?
The Oppo Ace2's 65W charging can fully charge the battery in 30 minutes, while the OnePlus 8 Pro takes significantly longer. Even reaching 50% on the OnePlus 8 Pro takes 23 minutes, whereas the Ace2 can achieve a full charge in that time. This translates to a substantial time saving for users who frequently need to quickly top up their battery.
❓ Does the Snapdragon 865 in either phone exhibit noticeable throttling during extended gaming sessions?
While both phones utilize the Snapdragon 865, the OnePlus 8 Pro's potentially superior thermal management system may allow it to sustain peak performance for slightly longer periods during demanding games. However, the 7nm+ process node of the Snapdragon 865 is relatively efficient, minimizing throttling on both devices. Expect some performance reduction after prolonged gaming, but it shouldn't be severe.
❓ Is the difference in software experience between Oppo's ColorOS and OnePlus's OxygenOS significant?
Yes, the software experience differs considerably. OxygenOS is known for its clean, near-stock Android feel with subtle customizations, while ColorOS is more feature-rich and visually distinct. Users who prefer a minimalist interface and faster updates will likely prefer OxygenOS. Those who enjoy a wider range of customization options may prefer ColorOS.