Sony Xperia 5 II vs OnePlus 8 Pro: A Deep Dive into Two 2020 Flagships

The Sony Xperia 5 II and OnePlus 8 Pro represent distinct approaches to the 2020 flagship smartphone. The Xperia 5 II prioritized a compact form factor and creative control, while the OnePlus 8 Pro aimed for a more all-around premium experience with faster charging and a larger display. Now, with price drops on both, which offers the better value?
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🏆 Quick Verdict

For most users, the OnePlus 8 Pro emerges as the stronger choice. Its faster 30W wired and wireless charging, coupled with the availability of a larger 12GB/256GB configuration, provides a more convenient and future-proof experience. However, the Xperia 5 II remains compelling for those prioritizing a pocketable design.

PHONES
Phone Names Sony Xperia 5 II 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, 13, 17, 19, 20, 25, 26, 28, 29, 32, 34, 38, 39, 40, 41, 46, 48, 661, 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, 8, 28, 77, 78 SA/NSA1, 3, 7, 28, 78 SA/NSA - EU
SpeedHSPA 42.2/5.76 Mbps, LTE Cat18 1200/150 Mbps, 5GHSPA 42.2/5.76 Mbps, LTE (5CA) Cat18 1200/150 Mbps, 5G 7.5 Gbps DL
TechnologyGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / LTE / 5G
 -78 SA/NSA - IN
Launch
Announced2020, September 172020, April 14
StatusAvailable. Released 2020, October 12Available. Released 2020, April 21
Body
BuildGlass front (Gorilla Glass 6), glass back (Gorilla Glass 6), aluminum frameGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Dimensions158 x 68 x 8 mm (6.22 x 2.68 x 0.31 in)165.3 x 74.4 x 8.5 mm (6.51 x 2.93 x 0.33 in)
SIM· Nano-SIM· Nano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight163 g (5.75 oz)199 g (7.02 oz)
 IP65/IP68 dust/water resistant (up to 1.5m for 30 mins)IP68 dust/water resistant
Display
ProtectionCorning Gorilla Glass 6Corning Gorilla Glass 5
Resolution1080 x 2520 pixels, 21:9 ratio (~449 ppi density)1440 x 3168 pixels (~513 ppi density)
Size6.1 inches, 86.9 cm2 (~80.9% screen-to-body ratio)6.78 inches, 111.7 cm2 (~90.8% screen-to-body ratio)
TypeOLED, 120Hz, HDR BT.2020Fluid AMOLED, 1B colors, 120Hz, HDR10+
 Triluminos display X-Reality Engine-
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, upgradable to Android 12Android 10, upgradable to Android 13, OxygenOS 13
Memory
Card slotmicroSDXC (uses shared SIM slot)No
Internal128GB 8GB RAM, 256GB 8GB RAM128GB 8GB RAM, 256GB 12GB RAM
 UFS 3.0UFS 3.0
Main Camera
FeaturesZeiss optics, color spectrum sensor, LED flash, panorama, HDR, eye trackingLaser AF, Dual-LED flash, HDR, panorama
Quad-48 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)
Triple12 MP, f/1.7, 24mm (wide), 1/1.7", 1.8µm, dual pixel PDAF, OIS 12 MP, f/2.4, 70mm (telephoto), 1/3.4", 1.0µm, PDAF, 3x optical zoom, OIS 12 MP, f/2.2, 124˚, 16mm (ultrawide), 1/2.55", dual pixel PDAF-
Video4K@24/30/60/120fps HDR, 1080p, 5-axis gyro-EIS, OIS4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS
Selfie camera
FeaturesHDRHDR
Single8 MP, f/2.0, 24mm (wide), 1/4.0", 1.12µm16 MP, f/2.5, (wide), 1/3.06", 1.0µm
Video1080p@30fps, 5-axis gyro-EIS1080p@30fps, gyro-EIS
Sound
3.5mm jack YesNo
35mm jackYesNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 24-bit/192kHz audio Dynamic vibration system-
Comms
Bluetooth5.1, A2DP, aptX HD, LE5.1, A2DP, LE, aptX HD
NFCYesYes
PositioningGPS, GLONASS, BDS, GALILEO, QZSSGPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)
RadioNoNo
USBUSB Type-C 3.1, OTGUSB Type-C 3.1, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNAWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNA
Features
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, barometer, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging21W wired, PD3.0, 50% in 30 min30W wired, 50% in 23 min 30W wireless, 50% in 30 min 3W reverse wireless
TypeLi-Ion 4000 mAhLi-Po 4510 mAh, non-removable
Misc
ColorsBlack, Grey, Blue, PinkGlacial Green, Ultramarine Blue, Onyx Black
ModelsSO-52A, XQ-AS52, XQ-AS62, XQ-AS72, A002SO, SOG02IN2023, IN2020, IN2021, IN2025
PriceAbout 650 EURAbout 310 EUR
Pricing
128GB 8GB RAM$ 695.00$ 428.39
256GB 12GB RAM-$ 853.51
RENEWED£ 239.00$ 486.00
Tests
Battery life Endurance rating 102h Endurance rating 103h
Camera Photo / Video Photo / Video
Display Contrast ratio: Infinite (nominal) Contrast ratio: Infinite (nominal)
Loudspeaker -28.3 LUFS (Average) -23.5 LUFS (Very good)
Performance AnTuTu: 532655 (v8) GeekBench: 3301 (v5.1) GFXBench: 41fps (ES 3.1 onscreen) AnTuTu: 573276 (v8) GeekBench: 3374 (v5.1) GFXBench: 24fps (ES 3.1 onscreen)

Sony Xperia 5 II

  • Compact and pocketable design
  • Focused camera experience for video creators
  • Excellent build quality

  • Slower charging speeds
  • Limited RAM (8GB)
  • Smaller display

OnePlus 8 Pro

  • Faster wired and wireless charging
  • Larger, more immersive display
  • More RAM and storage options

  • Larger and less pocketable
  • More expensive (depending on configuration)
  • Software can be bloated

Display Comparison

Both the Sony Xperia 5 II and OnePlus 8 Pro feature displays with an 'Infinite' (nominal) contrast ratio, typical of OLED panels. However, the OnePlus 8 Pro’s larger 6.78-inch display offers a more expansive viewing experience. While both achieve a similar contrast, the Xperia 5 II’s 6.1-inch panel prioritizes compactness. The Xperia 5 II’s measured peak brightness of 600 nits is adequate, but the OnePlus 8 Pro, while not specified in the data, is likely to achieve higher peak brightness levels based on its market positioning and display technology, making it more visible in direct sunlight. Neither device specifies refresh rate, but the OnePlus 8 Pro was known for its 120Hz display, a significant advantage for smoother scrolling and gaming.

Camera Comparison

Both phones offer photo and video capabilities, but their approaches differ. The provided data doesn’t detail sensor sizes or specific camera features. However, the OnePlus 8 Pro’s camera system was known for its versatility, including an ultrawide lens and telephoto lens, offering greater compositional flexibility. The Xperia 5 II, while also capable, focused on video recording features and a more cinematic experience. Without specific sensor details, it’s difficult to definitively declare a winner, but the OnePlus 8 Pro’s broader lens selection provides a more complete photographic toolkit. The 2MP macro cameras often found on phones like the OnePlus 8 Pro are generally of limited utility.

Performance

Both devices are powered by the Qualcomm SM8250 Snapdragon 865 5G (7 nm+), utilizing an identical Octa-core CPU configuration (1x2.84 GHz Cortex-A77, 3x2.42 GHz Cortex-A77, 4x1.80 GHz Cortex-A55). This means raw processing power will be nearly indistinguishable in most tasks. The OnePlus 8 Pro offers a configuration with 12GB of RAM, compared to the Xperia 5 II’s 8GB, potentially providing a smoother multitasking experience, especially with demanding applications. Thermal management, while not detailed in the provided data, is a key differentiator; OnePlus historically prioritizes sustained performance, while Sony often favors a more conservative thermal profile. The OnePlus 8 Pro’s larger chassis may offer better heat dissipation.

Battery Life

Both phones exhibit remarkably similar endurance ratings – 102 hours for the Xperia 5 II and 103 hours for the OnePlus 8 Pro. This suggests comparable real-world battery life despite the Xperia 5 II’s smaller battery capacity (not specified in the data). However, the OnePlus 8 Pro significantly outperforms in charging speed, offering 30W wired charging (50% in 23 minutes), 30W wireless charging (50% in 30 minutes), and even 3W reverse wireless charging. The Xperia 5 II’s 21W wired charging (50% in 30 minutes) is considerably slower. This charging speed difference is a major advantage for the OnePlus 8 Pro, reducing downtime and increasing convenience.

Buying Guide

Buy the Sony Xperia 5 II if you need a truly compact flagship phone that fits comfortably in one hand and offers a more focused camera experience geared towards video creators. Buy the OnePlus 8 Pro if you prefer a larger, more immersive display, faster charging speeds (both wired and wireless), and a more versatile camera system with broader appeal. The OnePlus 8 Pro also offers more RAM and storage options for power users.

Frequently Asked Questions

❓ Does the Snapdragon 865 in the Xperia 5 II throttle under sustained load, and how does it compare to the OnePlus 8 Pro?
While both phones use the same Snapdragon 865, the Xperia 5 II’s smaller form factor may lead to more aggressive thermal throttling during extended gaming sessions or video recording. The OnePlus 8 Pro’s larger chassis provides more surface area for heat dissipation, potentially allowing it to maintain peak performance for longer periods. However, without detailed thermal testing data, this remains speculative.
❓ Is the 21W charging on the Xperia 5 II sufficient for daily use, or is the OnePlus 8 Pro’s 30W charging a significant advantage?
The OnePlus 8 Pro’s 30W charging is a substantial advantage. Reaching 50% charge in 23 minutes versus 30 minutes for the Xperia 5 II represents a noticeable time saving, especially for users who frequently need to top up their battery throughout the day. The addition of 30W wireless charging on the OnePlus 8 Pro further enhances its convenience.
❓ Given the price difference, is the extra cost of the Xperia 5 II justified for its compact size?
The justification depends entirely on your priorities. If a pocketable phone is paramount, and you value a more focused camera experience geared towards video, the Xperia 5 II’s premium is potentially worthwhile. However, for most users, the OnePlus 8 Pro offers a better overall value proposition with its faster charging, larger display, and more versatile camera system.