OnePlus 10 Pro vs Samsung Galaxy S21 Ultra 5G: The Ultimate Showdown

The OnePlus 10 Pro and Samsung Galaxy S21 Ultra 5G represent the pinnacle of smartphone technology, each boasting impressive features and performance. Choosing between them can be tough. This comprehensive comparison breaks down every aspect, from display quality to camera capabilities, to help you decide which flagship is right for you.
Phones Images

🏆 Quick Verdict

The Samsung Galaxy S21 Ultra 5G edges out the OnePlus 10 Pro thanks to its superior display brightness, more versatile camera system, and longer software support. However, the OnePlus 10 Pro offers significantly faster charging and a more competitive price, making it a compelling alternative for budget-conscious users.

PHONES
Phone Names OnePlus 10 Pro Samsung Galaxy S21 Ultra 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 38, 39, 40, 41, 46, 48, 66, 71 - International1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G998U1
5G bands1, 2, 3, 5, 7, 8, 20, 25, 28, 30, 38, 40, 41, 48, 66, 71, 77, 78 SA/NSA - International2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G998U1
SpeedHSPA 42.2/5.76 Mbps, LTE (4CA) Cat18 1200/200 Mbps, 5GHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
TechnologyGSM / CDMA / HSPA / EVDO / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 1, 3, 5, 8, 28, 40, 41, 78, 79 SA/NSA - India1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G998B
Launch
Announced2022, January 112021, January 14
StatusAvailable. Released 2022, January 13Available. Released 2021, January 29
Body
BuildGlass front (Gorilla Glass Victus), glass back (Gorilla Glass 5), aluminum frameGlass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Dimensions163 x 73.9 x 8.6 mm (6.42 x 2.91 x 0.34 in)165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)
SIM· Nano-SIM· Nano-SIM + Nano-SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Weight201 g (7.09 oz)227 g (Sub6), 229 g (mmWave) (8.01 oz)
 IP68 dust/water resistant - T-Mobile only (not for use underwater, liquid damage is not covered under warranty)IP68 dust/water resistant (up to 1.5m for 30 min) Stylus support
Display
ProtectionCorning Gorilla Glass VictusCorning Gorilla Glass Victus
Resolution1440 x 3216 pixels, 20:9 ratio (~525 ppi density)1440 x 3200 pixels, 20:9 ratio (~515 ppi density)
Size6.7 inches, 108.4 cm2 (~90.0% screen-to-body ratio)6.8 inches, 112.1 cm2 (~89.8% screen-to-body ratio)
TypeLTPO2 Fluid AMOLED, 1B colors, 120Hz, HDR10+, 500 nits (typ), 800 nits (HBM), 1300 nits (peak)Dynamic AMOLED 2X, 120Hz, HDR10+, 1500 nits (peak)
 Always-on displayAlways-on display
Platform
CPUOcta-core (1x3.00 GHz Cortex-X2 & 3x2.50 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - InternationalOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
ChipsetQualcomm SM8450 Snapdragon 8 Gen 1 (4 nm)Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
GPUAdreno 730Mali-G78 MP14 - InternationalAdreno 660 - USA/China
OSAndroid 12, upgradable to Android 14, OxygenOS 14 (International), ColorOS (China)Android 11, up to 4 major Android upgrades, One UI 6.1
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM
 UFS 3.1UFS 3.1
Main Camera
FeaturesLaser AF, color spectrum sensor, Hasselblad Color Calibration, Dual-LED dual-tone flash, HDR, panoramaLaser AF, LED flash, auto-HDR, panorama
Quad-108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, OIS 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video
Single32 MP, f/2.2, (wide), 1/2.74", 0.8µm-
Triple48 MP, f/1.8, 23mm (wide), 1/1.43", 1.12µm, multi-directional PDAF, OIS 8 MP, f/2.4, 77mm (telephoto), 1.0µm, PDAF, OIS, 3.3x optical zoom 50 MP, f/2.2, 14mm, 150˚ (ultrawide), 1/2.76", 0.64µm-
Video8K@24fps, 4K@30/60/120fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
FeaturesHDRHDR
Single32 MP, f/2.2, (wide), 1/2.74", 0.8µm40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF
Video1080p@30fps, gyro-EIS4K@30/60fps, 1080p@30fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 24-bit/192kHz audio32-bit/384kHz audio Tuned by AKG
Comms
Bluetooth5.2, A2DP, LE, aptX HD5.2, A2DP, LE
NFCYesYes
PositioningGPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)GPS, GLONASS, BDS, GALILEO
RadioNoFM radio (Snapdragon model only; market/operator dependent)
USBUSB Type-C 3.1, OTGUSB Type-C 3.2, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compass, barometerFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
 -Samsung DeX, Samsung Wireless DeX (desktop experience support) Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) Ultra Wideband (UWB) support
Battery
Charging80W wired, PD, 100% in 32 min (International) 65W wired, PD, 58% in 15 min (North America) 50W wireless Reverse wireless25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
TypeLi-Po 5000 mAhLi-Ion 5000 mAh
Misc
ColorsVolcanic Black, Emerald Forest, Panda White (Extreme Edition)Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
ModelsNE2210, NE2211, NE2213, NE2215, NE2217SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980
Price$ 264.39 / C$ 349.99 / £ 360.00 / € 399.99$ 240.01 / C$ 353.20 / £ 202.99 / € 264.99
SAR1.16 W/kg (head)     0.70 W/kg (body)0.77 W/kg (head)     1.02 W/kg (body)
SAR EU-0.71 W/kg (head)     1.58 W/kg (body)
Pricing
128GB 12GB RAM-$ 384.99
256GB 12GB RAM-$ 998.00
512GB 12GB RAM-$ 1,179.99
RENEWED-$ 459.00
Tests
Battery life Endurance rating 107h Endurance rating 114h
Camera Photo / Video Photo / Video
Display Contrast ratio: Infinite (nominal) Contrast ratio: Infinite (nominal)
Loudspeaker -25.2 LUFS (Very good) -25.5 LUFS (Very good)
Performance AnTuTu: 886248 (v9) GeekBench: 3447 (v5.1) GFXBench: 48fps (ES 3.1 onscreen) AnTuTu: 657150 (v8) GeekBench: 3518 (v5.1) GFXBench: 33fps (ES 3.1 onscreen)

OnePlus 10 Pro

  • Faster Charging (80W wired)
  • Competitive Price
  • Clean OxygenOS
  • Excellent Performance

  • Less Versatile Camera
  • Lower Display Brightness
  • Shorter Software Support (potentially)

Samsung Galaxy S21 Ultra 5G

  • Brighter Display
  • More Versatile Camera System
  • Longer Software Support
  • Premium Build Quality

  • Slower Charging (25W wired)
  • Higher Price
  • OneUI can be bloated for some

Display Comparison

The Samsung Galaxy S21 Ultra 5G takes the display crown with a measured peak brightness of 1023 nits, significantly brighter than the OnePlus 10 Pro's 780 nits. Both offer excellent contrast ratios (infinite nominal), vibrant colors, and smooth 120Hz refresh rates, but the S21 Ultra's brightness advantage makes it more visible in direct sunlight. The S21 Ultra also has a slightly higher resolution, contributing to a sharper image.

Camera Comparison

The Samsung Galaxy S21 Ultra 5G boasts a more versatile and advanced camera system. Its 108MP main sensor, multiple telephoto lenses (3x and 10x optical zoom), and impressive software processing capabilities provide exceptional image quality and zoom capabilities. The OnePlus 10 Pro's camera is still very good, but lacks the S21 Ultra's zoom range and overall versatility. Both capture excellent photos in good lighting, but the S21 Ultra excels in low-light conditions.

Performance

Both phones deliver flagship-level performance. The OnePlus 10 Pro's Snapdragon 8 Gen 1 is a powerhouse, while the S21 Ultra utilizes either the Exynos 2100 or Snapdragon 888 5G depending on the region. While benchmarks might show slight variations, real-world performance is generally excellent on both devices, handling demanding games and multitasking with ease. The OnePlus 10 Pro's OxygenOS is known for its speed and customization options.

Battery Life

The Samsung Galaxy S21 Ultra 5G has a slight edge in battery endurance, with an endurance rating of 114 hours compared to the OnePlus 10 Pro's 107 hours. However, the OnePlus 10 Pro's 80W wired charging is significantly faster than the S21 Ultra's 25W, allowing for a much quicker top-up. The OnePlus also offers 50W wireless charging, while the S21 Ultra is limited to 15W.

Buying Guide

The OnePlus 10 Pro is ideal for users prioritizing fast charging, a clean software experience, and a more affordable flagship price. The Samsung Galaxy S21 Ultra 5G is best suited for those who demand the best possible display, a top-tier camera system with advanced features, and a longer software update commitment.

Frequently Asked Questions

❓ Which phone has better software support?
Samsung generally offers longer software update support for its Galaxy devices compared to OnePlus, although OnePlus has improved in recent years.
❓ Is the OnePlus 10 Pro worth it if I value fast charging?
Absolutely! The OnePlus 10 Pro's 80W charging is a standout feature, allowing for incredibly quick top-ups.