OnePlus 9E vs. Samsung Galaxy S21+: A Deep Dive into Performance and Value

The OnePlus 9E and Samsung Galaxy S21+ 5G represent distinct approaches to the 5G smartphone market. The 9E, launched as a more affordable option, leverages the Snapdragon 690. The S21+, meanwhile, aimed for the flagship space with either the Snapdragon 888 or Exynos 2100, depending on the region. This comparison dissects the core differences to determine which device delivers the best experience for your needs.
Phones Images

🏆 Quick Verdict

For the average user prioritizing a smooth daily experience and affordability, the Samsung Galaxy S21+ 5G is the superior choice. While the OnePlus 9E offers respectable performance, the S21+'s significantly more powerful processor and brighter display justify the price difference, especially considering comparable battery endurance.

PHONES
Phone Names OnePlus 9E Samsung Galaxy S21+ 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bandsLTE1, 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 bandsSA/NSA2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G996U1
SpeedHSPA 42.2/5.76 Mbps, LTE Cat18 1024/150 Mbps, 5GHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
TechnologyGSM / HSPA / 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
AnnouncedNot announced yet2021, January 14
StatusCancelledAvailable. Released 2021, January 29
Body
Build-Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame
Dimensions-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)
Weight-200 g (Sub6), 202 g (mmWave) (7.05 oz)
 -IP68 dust/water resistant (up to 1.5m for 30 min)
Display
Protection-Corning Gorilla Glass Victus
Resolution1080 x 2400 pixels, 20:9 ratio (~405 ppi density)1080 x 2400 pixels, 20:9 ratio (~394 ppi density)
Size6.5 inches, 102.0 cm26.7 inches, 107.8 cm2 (~88.3% screen-to-body ratio)
TypeIPS LCD, 90HzDynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
 -Always-on display
Platform
CPUOcta-core (2x2.0 GHz Kryo 560 Gold & 6x1.7 GHz Kryo 560 Silver)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 SM6350 Snapdragon 690 5G (8 nm)Exynos 2100 (5 nm) - InternationalQualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
GPUAdreno 619LMali-G78 MP14 - InternationalAdreno 660 - USA/China
OSAndroid 11Android 11, up to 4 major Android upgrades, One UI 6.1
Memory
Card slotmicroSDXCNo
Internal128GB 8GB RAM128GB 8GB RAM, 256GB 8GB RAM
 -UFS 3.1
Main Camera
FeaturesLED flash, HDR, panoramaLED flash, auto-HDR, panorama
Quad64 MP, f/1.8, (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.3, 119˚ (ultrawide) 2 MP (macro) Auxiliary lens-
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@30fps, 1080p@30/60/120fps; gyro-EIS8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera
FeaturesHDRHDR
Single16 MP10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF
Video1080p@30/60fps, gyro-EIS4K@30/60fps, 1080p@30fps
Sound
3.5mm jack -No
35mm jackYesNo
Loudspeaker YesYes, with stereo speakers
 -32-bit/384kHz audio Tuned by AKG
Comms
Bluetooth5.1, A2DP, LE5.0, A2DP, LE
NFCYesYes
PositioningGPSGPS, 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, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (rear-mounted), 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
Charging-25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
TypeLi-Po 5000 mAhLi-Ion 4800 mAh
Misc
ColorsBlue; other coloursPhantom Black, Phantom Silver, Phantom Violet, Phantom Pink, Phantom Gold, Phantom Red
Models-SM-G996B, SM-G996B/DS, SM-G996U, SM-G996U1, SM-G996W, SM-G996N, SM-G9960
Price-$ 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)

OnePlus 9E

  • More affordable price point
  • Decent performance for everyday tasks
  • 5G connectivity

  • Significantly less powerful processor
  • Likely inferior camera performance
  • Slower charging speeds

Samsung Galaxy S21+ 5G

  • Flagship-level performance with Snapdragon 888 or Exynos 2100
  • Brighter and higher-quality display
  • Faster charging and wireless charging capabilities

  • Higher price tag
  • Potential for thermal throttling (Exynos variant)
  • May be larger and heavier than the 9E

Display Comparison

The Samsung Galaxy S21+ boasts a notably brighter display, reaching a measured 883 nits, compared to an unspecified brightness for the OnePlus 9E. This difference is crucial for outdoor visibility. While both displays likely feature high refresh rates (a common feature in this price bracket, though not explicitly stated for the 9E), the S21+'s 'Infinite' contrast ratio suggests a superior panel technology, likely AMOLED, offering deeper blacks and more vibrant colors. The S21+'s display is geared towards media consumption and gaming in all lighting conditions.

Camera Comparison

Both phones feature capable camera systems, but the S21+ likely holds an advantage in image quality and versatility. While both are listed as having 'Photo / Video' capabilities, the S21+'s flagship status suggests a larger main sensor and more advanced image processing algorithms. The OnePlus 9E likely relies on software optimization to compensate for its less powerful ISP. Details on sensor sizes and apertures are missing, but the S21+'s overall system is expected to deliver superior low-light performance and dynamic range. The inclusion of OIS (Optical Image Stabilization) on the S21+ is also probable, further enhancing image and video stability.

Performance

The core difference lies in the chipsets. The OnePlus 9E's Snapdragon 690, built on an 8nm process, is a capable mid-range processor. However, the Samsung Galaxy S21+'s Exynos 2100 (International) or Snapdragon 888 (USA/China), both fabricated on a more efficient 5nm node, represent a substantial leap in performance. The S21+'s CPU configuration – a Cortex-X1 prime core alongside Cortex-A78 and A55 cores – delivers significantly faster processing speeds (up to 2.9 GHz vs 2.0 GHz) and improved multi-tasking capabilities. This translates to quicker app launches, smoother gaming, and better performance in demanding applications. The 5nm process also contributes to better thermal efficiency, potentially reducing throttling during sustained workloads.

Battery Life

Interestingly, both phones share an endurance rating of 114 hours, suggesting comparable real-world battery life despite the S21+'s more powerful processor. This is likely due to the S21+'s more efficient 5nm chipset and optimized software. The S21+ offers faster charging at 25W wired, with support for PD3.0, alongside 15W wireless and 4.5W reverse wireless charging – features absent or less advanced on the 9E. While the S21+'s battery capacity isn't specified, the faster charging speeds provide a significant convenience advantage.

Buying Guide

Buy the OnePlus 9E if you need a reliable 5G phone for basic tasks, social media, and light gaming, and are on a strict budget. It's a solid option for those who don't demand top-tier performance. Buy the Samsung Galaxy S21+ 5G if you prioritize a premium display, significantly faster processing power for demanding apps and games, and a more versatile camera system, and are willing to invest in a higher-end device.

Frequently Asked Questions

❓ Does the Exynos 2100 chip in the international S21+ suffer from overheating issues?
Early reports indicated that the Exynos 2100 variant of the S21+ could experience more thermal throttling than the Snapdragon 888 version, particularly during prolonged gaming sessions. Samsung addressed some of these concerns with software updates, but the Snapdragon variant generally maintains better sustained performance.
❓ Is the 2MP macro camera on either phone actually useful for taking detailed close-up shots?
Generally, 2MP macro cameras on phones in this price range offer limited detail and image quality. They are often included as a marketing feature but rarely deliver truly impressive macro photography. The S21+'s overall camera system is likely to produce more usable close-up shots even without a dedicated macro lens.
❓ Can the OnePlus 9E handle demanding games like PUBG Mobile at high frame rates (90fps)?
While the Snapdragon 690 is capable of running PUBG Mobile, achieving consistently high frame rates (90fps) at maximum settings may be challenging. You'll likely need to lower the graphics settings to maintain a smooth gaming experience. The S21+ with its Snapdragon 888 or Exynos 2100 will easily handle 90fps at higher settings.
❓ How does the 5G performance differ between the OnePlus 9E and the Samsung Galaxy S21+?
Both phones support 5G connectivity, but the S21+'s more advanced modem (integrated into the Snapdragon 888/Exynos 2100) likely offers wider band support and potentially faster download/upload speeds, depending on your carrier and location. The 9E's Snapdragon 690 modem is still capable, but may not be as future-proof.