Oppo Reno6 Pro+ 5G vs Samsung Galaxy S21+: A Deep Dive Comparison

The Oppo Reno6 Pro+ 5G and Samsung Galaxy S21+ 5G represent compelling options in the flagship Android space, though they arrived with different strategies. The Reno6 Pro+ aimed to deliver near-flagship performance at a more accessible price point, while the S21+ was Samsung’s mainstream premium offering. This comparison dissects their key differences to determine which phone best suits your needs.
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🏆 Quick Verdict

For most users, the Oppo Reno6 Pro+ 5G emerges as the stronger value. Its Snapdragon 870 delivers excellent performance, coupled with blazing-fast 65W charging. While the S21+ boasts a brighter display and potentially a more refined software experience (depending on preference), the Reno6 Pro+ offers a compelling package for the price.

PHONES
Phone Names Oppo Reno6 Pro+ 5G Samsung Galaxy S21+ 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, 17, 18, 19, 26, 28, 34, 38, 39, 40, 41 - China1, 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-G996U1
5G bands1, 3, 28, 41, 77, 78, 79 SA/NSA - China2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G996U1
SpeedHSPA, LTE, 5GHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 -1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G996B
Launch
Announced2021, May 272021, January 14
StatusAvailable. Released 2021, June 05Available. Released 2021, January 29
Body
BuildGlass front (Gorilla Glass 5), glass backGlass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Dimensions160.8 x 72.5 x 8 mm (6.33 x 2.85 x 0.31 in)161.5 x 75.6 x 7.8 mm (6.36 x 2.98 x 0.31 in)
SIMNano-SIM + Nano-SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
Weight188 g (6.63 oz)200 g (Sub6), 202 g (mmWave) (7.05 oz)
 -IP68 dust/water resistant (up to 1.5m for 30 min)
Display
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass Victus
Resolution1080 x 2400 pixels, 20:9 ratio (~402 ppi density)1080 x 2400 pixels, 20:9 ratio (~394 ppi density)
Size6.55 inches, 103.6 cm2 (~88.8% screen-to-body ratio)6.7 inches, 107.8 cm2 (~88.3% screen-to-body ratio)
TypeAMOLED, 90Hz, HDR10+, 500 nits (typ), 800 nits (HDR), 1100 nits (peak)Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
 -Always-on display
Platform
CPUOcta-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)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 SM8250-AC Snapdragon 870 5G (7 nm)Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
GPUAdreno 650Mali-G78 MP14 - InternationalAdreno 660 - USA/China
OSAndroid 11, upgradable to Android 12, ColorOS 12Android 11, up to 4 major Android upgrades, One UI 6.1
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 12GB RAM128GB 8GB RAM, 256GB 8GB RAM
 -UFS 3.1
Main Camera
FeaturesColor spectrum sensor, Dual-LED flash, HDR, panoramaLED flash, auto-HDR, panorama
Quad50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, multi-directional PDAF, OIS 13 MP, f/2.4, 52mm (telephoto), 1/3.4", 1.0µm, PDAF, 2x optical zoom 16 MP, f/2.2, 123˚ (ultrawide), 1/3.09", 1.0µm 2 MP (macro)-
Triple-12 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
Video4K@30/60fps, 1080p@30/60/120fps; gyro-EIS, HDR8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
FeaturesPanoramaHDR
Single32 MP, f/2.4, 26mm (wide), 1/2.8", 0.8µm10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF
Video1080p@30fps, gyro-EIS4K@30/60fps, 1080p@30fps
Sound
3.5mm jack -No
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 -32-bit/384kHz audio Tuned by AKG
Comms
Bluetooth5.2, A2DP, LE, aptX HD5.0, A2DP, LE
NFCYesYes
PositioningGPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5)GPS, GLONASS, BDS, GALILEO
RadioNoFM radio (Snapdragon model only; market/operator dependent)
USBUSB Type-C 2.0, 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/6, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (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
Charging65W wired25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
TypeLi-Po 4500 mAhLi-Ion 4800 mAh
Misc
ColorsArctic Blue, Lunar GreyPhantom Black, Phantom Silver, Phantom Violet, Phantom Pink, Phantom Gold, Phantom Red
ModelsPENM00SM-G996B, SM-G996B/DS, SM-G996U, SM-G996U1, SM-G996W, SM-G996N, SM-G9960
PriceAbout 520 EUR$ 162.99 / £ 185.00 / € 199.00
SAR-0.65 W/kg (head)     0.95 W/kg (body)
SAR EU-0.54 W/kg (head)     1.33 W/kg (body)
Tests
Battery life- Endurance rating 114h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -25.8 LUFS (Very good)
Performance- AnTuTu: 622276 (v8) GeekBench: 3476 (v5.1) GFXBench: 54fps (ES 3.1 onscreen)

Oppo Reno6 Pro+ 5G

  • Significantly faster 65W charging
  • Excellent thermal management with Snapdragon 870
  • Strong value for money

  • Display likely less bright than S21+
  • Less established brand recognition

Samsung Galaxy S21+ 5G

  • Brighter display for outdoor visibility
  • Wireless and reverse wireless charging
  • Established brand and software ecosystem

  • Potential for thermal throttling with Exynos/Snapdragon 888
  • Slower 25W wired charging
  • Higher price point

Display Comparison

The Samsung Galaxy S21+ 5G holds a clear advantage in display brightness, reaching a measured 883 nits. While the Reno6 Pro+’s display specs aren’t explicitly stated, it likely falls short of this peak. The S21+’s ‘Infinite’ contrast ratio suggests a high-quality AMOLED panel. However, the Reno6 Pro+ may offer a higher PWM dimming rate, potentially reducing eye strain for sensitive users. Both utilize AMOLED technology, delivering vibrant colors, but the S21+’s higher peak brightness is crucial for outdoor use.

Camera Comparison

Both phones offer capable camera systems, but details beyond 'Photo/Video' are limited. The Reno6 Pro+’s camera system is likely tuned for vibrant, social media-ready images, a common Oppo trait. The S21+’s camera benefits from Samsung’s extensive image processing expertise, aiming for a more natural look. Without sensor size specifics, it’s difficult to declare a clear winner. However, the S21+’s reputation for video quality and potentially more advanced computational photography features give it a slight edge. The inclusion of a 2MP macro camera on either device is largely inconsequential.

Performance

The chipset battle is nuanced. The Samsung Galaxy S21+ 5G utilizes either the Exynos 2100 (international) or Snapdragon 888 (USA/China), both fabricated on a 5nm process. The Oppo Reno6 Pro+ 5G features the Snapdragon 870 5G, built on a 7nm process. While the Exynos 2100/Snapdragon 888 boast higher clock speeds (2.9GHz vs 3.2GHz on the Reno6 Pro+’s Kryo 585 prime core), the 7nm process of the Snapdragon 870 often translates to better thermal efficiency and sustained performance. The Snapdragon 888 is known to throttle under prolonged heavy loads, a potential issue the Reno6 Pro+ mitigates. The S21+'s CPU architecture (Cortex-X1, A78, A55) is more modern, but real-world performance differences are often minimal for typical tasks.

Battery Life

The Samsung Galaxy S21+ 5G boasts an endurance rating of 114 hours, indicating solid battery life. However, the Oppo Reno6 Pro+ 5G’s 65W wired charging is a game-changer. It can fully charge the device in under 30 minutes, a significant advantage over the S21+’s 25W charging. While the S21+ offers 15W wireless and 4.5W reverse wireless charging, the Reno6 Pro+ prioritizes speed. The difference in charging speed dramatically impacts usability, especially for users who frequently need to top up their battery.

Buying Guide

Buy the Oppo Reno6 Pro+ 5G if you prioritize fast charging, sustained performance under load, and value for money. It’s ideal for power users and gamers who demand responsiveness without breaking the bank. Buy the Samsung Galaxy S21+ 5G if you prefer a more established brand ecosystem, a brighter display for outdoor visibility, and wireless charging convenience, and are willing to pay a premium for those features.

Frequently Asked Questions

❓ Does the Exynos 2100 in the international S21+ overheat during extended gaming sessions?
The Exynos 2100 variant of the S21+ is known to exhibit thermal throttling under sustained load, particularly during demanding games. While Samsung implemented software optimizations, it doesn't fully mitigate the issue. The Oppo Reno6 Pro+'s Snapdragon 870, with its 7nm process, generally maintains cooler temperatures and more consistent performance during prolonged gaming.
❓ Is the 65W charging on the Reno6 Pro+ compatible with Power Delivery (PD) chargers?
While the Reno6 Pro+ supports 65W charging, it utilizes Oppo's proprietary VOOC charging protocol. While it *may* work with some PD chargers, it won't achieve the full 65W speed unless you use the included charger. Using a standard PD charger will still charge the phone, but at a slower rate.
❓ How does the image processing differ between the Reno6 Pro+ and the S21+?
Oppo typically tunes its cameras for vibrant, saturated colors, often appealing to social media users. Samsung, on the other hand, generally aims for a more natural and realistic look with its image processing. This means photos from the S21+ might require less editing, while Reno6 Pro+ images might be more 'ready to share' straight from the camera.
❓ Does the S21+ support 120Hz refresh rate at full resolution?
No, the Samsung Galaxy S21+ does not support 120Hz refresh rate at its full QHD+ resolution simultaneously. It's either 120Hz at FHD+ or 60Hz at QHD+. This is a limitation to manage power consumption and thermal performance.