Samsung Galaxy S20 5G UW vs OnePlus 8 Pro: A Deep Dive into Snapdragon 865 Flagships

Launched within months of each other, the Samsung Galaxy S20 5G UW and the OnePlus 8 Pro represent two distinct approaches to the high-end Android market. Both leverage the Qualcomm Snapdragon 865 5G chipset, but diverge significantly in charging speeds, battery optimization, and overall pricing, making a direct comparison crucial for discerning buyers.
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🏆 Quick Verdict

For most users, the OnePlus 8 Pro offers a more compelling package. Its significantly faster 30W wired and wireless charging, coupled with comparable performance and a potentially lower price point (depending on configuration), makes it the better all-around choice. The S20 5G UW remains a strong contender, but its slower charging speeds are a notable drawback.

PHONES
Phone Names Samsung Galaxy S20 5G UW OnePlus 8 Pro
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 bands2, 3, 4, 5, 7, 8, 13, 18, 19, 20, 26, 28, 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 bands260, 261 mmWave1, 3, 7, 28, 78 SA/NSA - EU
SpeedHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)HSPA 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, May 202020, April 14
StatusAvailable. Released 2020, June 04Available. 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
Dimensions151.7 x 69.1 x 8.1 mm (5.97 x 2.72 x 0.32 in)165.3 x 74.4 x 8.5 mm (6.51 x 2.93 x 0.33 in)
SIMNano-SIM (pre-installed)Nano-SIM + Nano-SIM
Weight168.1 g (5.93 oz)199 g (7.02 oz)
 IP68 dust/water resistant (up to 1.5m for 30 min)IP68 dust/water resistant
Display
ProtectionCorning Gorilla Glass 6Corning Gorilla Glass 5
Resolution1440 x 3200 pixels, 20:9 ratio (~566 ppi density)1440 x 3168 pixels (~513 ppi density)
Size6.2 inches, 92.8 cm2 (~88.5% screen-to-body ratio)6.78 inches, 111.7 cm2 (~90.8% screen-to-body ratio)
TypeDynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak)Fluid AMOLED, 1B colors, 120Hz, HDR10+
 Always-on display 120Hz@FHD/60Hz@QHD refresh rate-
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, One UI 2.5Android 10, upgradable to Android 13, OxygenOS 13
Memory
Card slotNoNo
Internal128GB 8GB RAM128GB 8GB RAM, 256GB 12GB RAM
 UFS 3.0UFS 3.0
Main Camera
FeaturesLED flash, auto-HDR, panoramaLaser 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/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video-
Video8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS
Selfie camera
FeaturesHDRHDR
Single10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF16 MP, f/2.5, (wide), 1/3.06", 1.0µm
Video4K@30/60fps, 1080p@30fps1080p@30fps, gyro-EIS
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 32-bit/384kHz audio Tuned by AKG-
Comms
Bluetooth5.0, A2DP, LE5.1, A2DP, LE, aptX HD
NFCYesYes
PositioningGPS, GLONASS, BDS, GALILEOGPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)
RadioFM radioNo
USBUSB Type-C 3.2, 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, ultrasonic), accelerometer, gyro, proximity, compass, barometerFingerprint (under display, optical), accelerometer, gyro, proximity, compass
 Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+ Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified)-
Battery
Charging25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless30W wired, 50% in 23 min 30W wireless, 50% in 30 min 3W reverse wireless
TypeLi-Ion 4000 mAhLi-Po 4510 mAh, non-removable
Misc
ColorsCloud Pink, Cosmic Grey, Cloud WhiteGlacial Green, Ultramarine Blue, Onyx Black
ModelsSM-G981VIN2023, IN2020, IN2021, IN2025
PriceAbout 880 EURAbout 310 EUR
SAR0.91 W/kg (head)     1.05 W/kg (body)-
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)

Samsung Galaxy S20 5G UW

  • Established Brand Reputation
  • Potentially better carrier support
  • 4.5W Reverse Wireless Charging

  • Slower 25W Wired Charging
  • Slower 15W Wireless Charging
  • Potentially higher price

OnePlus 8 Pro

  • Faster 30W Wired Charging (50% in 23 min)
  • Faster 30W Wireless Charging (50% in 30 min)
  • Potentially lower price

  • Aggressive Thermal Throttling (potential)
  • Less established brand recognition

Display Comparison

Both devices boast displays with an 'Infinite' contrast ratio, suggesting excellent black levels. However, the context data lacks specific details like peak brightness or refresh rate. Given OnePlus's history, the 8 Pro likely features a 120Hz display, offering smoother scrolling and animations compared to the standard 60Hz expected on the S20 5G UW. This difference would be particularly noticeable for gaming and video consumption. Without further data, it's difficult to assess color accuracy or HDR support, but both are expected to deliver vibrant and detailed visuals.

Camera Comparison

The provided data only states 'Photo / Video' capabilities for both. Without sensor size, aperture, or specific feature details, a detailed camera comparison is impossible. However, OnePlus typically focuses on natural image processing, while Samsung tends towards more saturated and vibrant colors. The S20 5G UW's potential for more advanced software features (like Single Take mode) should be considered. The absence of information regarding optical image stabilization (OIS) is a significant omission; its presence is crucial for low-light photography and video stabilization on both devices.

Performance

Both the Samsung Galaxy S20 5G UW and the OnePlus 8 Pro utilize the Qualcomm SM8250 Snapdragon 865 5G (7 nm+), featuring the same 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 virtually identical. The key differentiator will likely be thermal management. OnePlus has a reputation for aggressive thermal throttling to maintain sustained performance, while Samsung's approach is typically more conservative. The S20 5G UW's larger chassis *may* allow for slightly better heat dissipation, but real-world testing is needed to confirm. Both devices utilize LPDDR5 RAM, ensuring fast memory access.

Battery Life

The OnePlus 8 Pro boasts a significant advantage in charging speed. Its 30W wired charging can reach 50% in just 23 minutes, while the S20 5G UW's 25W charging is noticeably slower. Similarly, the 30W wireless charging on the OnePlus 8 Pro (50% in 30 minutes) dwarfs the S20 5G UW's 15W wireless charging. Both offer reverse wireless charging, but the OnePlus 8 Pro's 3W output is less powerful than the S20 5G UW's 4.5W. The OnePlus 8 Pro's endurance rating of 103 hours suggests optimized power management, potentially offsetting any minor differences in battery capacity (which isn't specified in the data).

Buying Guide

Buy the Samsung Galaxy S20 5G UW if you prioritize a more established brand ecosystem and potentially better carrier support, and are less concerned about charging speed. Buy the OnePlus 8 Pro if you value faster charging, a potentially lower price, and a cleaner, more streamlined Android experience. The OnePlus 8 Pro is ideal for power users who frequently top up their battery throughout the day.

Frequently Asked Questions

❓ Does the OnePlus 8 Pro's fast charging generate excessive heat?
While 30W charging is fast, OnePlus employs multiple layers of safety and thermal management to mitigate heat buildup. However, some users may experience slightly warmer temperatures during charging compared to slower charging methods. The phone will dynamically adjust charging speed to maintain safe operating temperatures.
❓ Is the lack of a microSD card slot a dealbreaker on either device?
Neither the Samsung Galaxy S20 5G UW nor the OnePlus 8 Pro offers microSD card expansion. This means you're limited to the internal storage you choose at purchase (128GB or 256GB). Consider your storage needs carefully before making a decision, especially if you plan to record a lot of 4K video or store large media libraries.
❓ How does the software experience differ between Samsung's One UI and OnePlus's OxygenOS?
Samsung's One UI is feature-rich and highly customizable, but can feel bloated to some users. OnePlus's OxygenOS offers a cleaner, more streamlined Android experience with fewer pre-installed apps and a focus on speed and responsiveness. OxygenOS is generally preferred by users who value simplicity and performance.