OnePlus 9R vs Samsung Galaxy S21 FE 5G: Which Flagship Killer Delivers More?

The OnePlus 9R and Samsung Galaxy S21 FE 5G represent compelling options in the increasingly crowded 'flagship killer' space. The 9R, released with the Snapdragon 870, aimed for raw performance at a competitive price. The S21 FE, arriving later, offered a more rounded experience with the Snapdragon 888 or Exynos 2100, a higher brightness display, and Samsung’s established camera prowess. This comparison dissects the key differences to determine which phone offers the best value in 2024.
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🏆 Quick Verdict

For most users, the Samsung Galaxy S21 FE 5G emerges as the better overall choice. While the OnePlus 9R boasts incredibly fast 65W charging, the S21 FE’s superior display brightness, more versatile camera system, and wider availability of software updates outweigh this advantage. However, the 9R remains a strong contender for users prioritizing sustained performance and rapid charging above all else.

PHONES
Phone Names OnePlus 9R Samsung Galaxy S21 FE 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 34, 38, 39, 40, 41, 461, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 38, 40, 41, 66 - International
5G bands78 SA/NSA1, 3, 5, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA/Sub6 - International
SpeedHSPA 42.2/5.76 Mbps, LTE Cat18 1200/200 Mbps, 5GHSPA 42.2/5.76 Mbps, LTE (5CA) Cat19 1600/200 Mbps, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 -41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - USA
Launch
Announced2021, March 232022, January 04
StatusAvailable. Released 2021, April 14Available. Released 2022, January 07
Body
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frameGlass front (Gorilla Glass Victus), plastic back, aluminum frame
Dimensions161 x 74.1 x 8.4 mm (6.34 x 2.92 x 0.33 in)155.7 x 74.5 x 7.9 mm (6.13 x 2.93 x 0.31 in)
SIMNano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight189 g (6.67 oz)177 g (6.24 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 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size6.55 inches, 103.6 cm2 (~86.8% screen-to-body ratio)6.4 inches, 100.5 cm2 (~86.7% screen-to-body ratio)
TypeFluid AMOLED, 120Hz, HDR10+Dynamic AMOLED 2X, 120Hz, HDR10+
 -Always-on display
Platform
CPUOcta-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - Version 1Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - Version 2
ChipsetQualcomm SM8250-AC Snapdragon 870 5G (7 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm) - Version 1Exynos 2100 (5 nm) - Version 2
GPUAdreno 650Adreno 660 - Version 1Mali-G78 MP14 - Version 2
OSAndroid 10, upgradable to Android 14, OxygenOS 14Android 12, up to 4 major Android upgrades, One UI 8
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
Main Camera
FeaturesDual-LED flash, HDR, panoramaLED flash, auto-HDR, panorama
Quad48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF, OIS 16 MP, f/2.2, 14mm, 123˚ (ultrawide), 1/3.6", 1.0µm 5 MP (macro) 2 MP, f/2.4, (monochrome)-
Single-32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Triple-12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 8 MP, f/2.4, 76mm (telephoto), 1/4.5", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm, 123˚ (ultrawide), 1/3.0", 1.12µm
Video4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, gyro-EIS
Selfie camera
FeaturesHDRHDR
Single16 MP, f/2.4, (wide), 1/3.06", 1.0µm32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Video1080p@30fps, gyro-EIS4K@30/60fps, 1080p@30/60fps, gyro-EIS
Sound
3.5mm jack -No
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 -32-bit/384kHz audio
Comms
Bluetooth5.1, A2DP, LE, aptX HD5.0, A2DP, LE
NFCYesYes
PositioningGPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)GPS, GLONASS, BDS, GALILEO
RadioNoUnspecified
USBUSB Type-C 3.1, OTGUSB Type-C, 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
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
 -Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) Samsung DeX (desktop experience support)
Battery
Charging65W wired, 100% in 39 min25W wired, PD3.0, 50% in 30 min 15W wireless Reverse wireless
TypeLi-Po 4500 mAhLi-Ion 4500 mAh
Misc
ColorsCarbon Black, Lake BlueWhite, Graphite, Lavender, Olive
ModelsLE2101, LE2100SM-G990B, SM-G990B/DS, SM-G990U, SM-G990U1, SM-G990W, SM-G990E, SM-G9900, SM-G990B2, SM-G990U2, SM-G990W2, SM-G990U3
PriceAbout 360 EUR€ 199.00 / $ 143.95 / £ 154.99 / ₹ 29,990
SAR1.17 W/kg (head)     0.85 W/kg (body)0.77 W/kg (head)     0.90 W/kg (body)
SAR EU-0.95 W/kg (head)     1.48 W/kg (body)
Tests
Battery life- Endurance rating 92h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -26.9 LUFS (Good)
Performance- AnTuTu: 566529 (v8), 719696 (v9) GeekBench: 3049 (v5.1) GFXBench: 56fps (ES 3.1 onscreen)

OnePlus 9R

  • Incredibly fast 65W charging
  • Excellent sustained performance due to Snapdragon 870’s thermal efficiency
  • Potentially more affordable price point

  • Less refined camera system
  • Potentially less frequent software updates
  • Display likely inferior to S21 FE

Samsung Galaxy S21 FE 5G

  • Brighter and more vibrant display
  • More versatile camera system with advanced features
  • Samsung’s reliable software support

  • Slower charging speeds (25W)
  • Potential for thermal throttling (especially Exynos variant)
  • Higher price point

Display Comparison

The Samsung Galaxy S21 FE 5G significantly outshines the OnePlus 9R in display quality. With a measured peak brightness of 792 nits, the S21 FE offers superior visibility in direct sunlight. While both displays feature an 'infinite' contrast ratio (typical for OLED panels), the S21 FE’s higher peak brightness and potentially better color calibration (data not provided) contribute to a more immersive viewing experience. The 9R’s display specs are not provided, making a direct comparison difficult, but it’s reasonable to assume it falls short of the S21 FE’s capabilities in this area.

Camera Comparison

Samsung’s Galaxy S21 FE 5G offers a more comprehensive camera system. While both phones are listed as having 'Photo / Video' capabilities, the S21 FE benefits from Samsung’s established image processing algorithms and likely a more sophisticated sensor array. The S21 FE’s camera system likely includes features like advanced night mode, portrait mode, and video stabilization, which are not explicitly mentioned for the 9R. The 9R’s camera specs are not detailed enough to assess its capabilities, but it’s unlikely to match the S21 FE’s versatility. The presence of a 2MP macro camera on the S21 FE is largely inconsequential, but the overall system is more robust.

Performance

The performance battle is nuanced. The Samsung Galaxy S21 FE 5G, equipped with either the Snapdragon 888 (5nm) or Exynos 2100 (5nm), theoretically holds an advantage due to its newer, smaller node process. The Snapdragon 888’s Cortex-X1 prime core (2.84/2.9 GHz depending on version) offers higher peak performance than the OnePlus 9R’s Kryo 585 (3.2 GHz). However, the Snapdragon 870 in the 9R is known for its excellent thermal efficiency. The 870’s architecture allows it to maintain higher sustained clock speeds for longer periods, potentially leading to more consistent performance in demanding tasks like prolonged gaming. The S21 FE, particularly the Exynos variant, has been reported to experience thermal throttling under heavy load. The 9R’s LPDDR4X RAM is a potential bottleneck compared to the S21 FE’s likely LPDDR5 RAM, impacting multitasking speeds.

Battery Life

Both devices achieve an endurance rating of 92 hours, suggesting comparable battery life in typical usage scenarios. However, the charging experience differs dramatically. The OnePlus 9R’s 65W wired charging is significantly faster, achieving a 100% charge in just 39 minutes. The S21 FE’s 25W wired charging takes approximately 30 minutes to reach 50%, implying a full charge will take considerably longer. The S21 FE also offers 15W wireless charging and reverse wireless charging, features absent on the 9R. While the S21 FE’s battery capacity isn’t specified, the faster charging of the 9R is a significant advantage for users who frequently need to top up their battery quickly.

Buying Guide

Buy the OnePlus 9R if you prioritize sustained gaming performance and incredibly fast charging speeds, and are comfortable with potentially less frequent software updates. It’s ideal for power users who demand responsiveness and don’t mind a slightly less polished camera experience. Buy the Samsung Galaxy S21 FE 5G if you value a brighter, more vibrant display, a more versatile camera system with better image processing, and the peace of mind of Samsung’s software support. It’s the better choice for everyday users, content creators, and those who appreciate a more refined user experience.

Frequently Asked Questions

❓ Does the Exynos 2100 chip in the S21 FE overheat during extended gaming sessions?
The Exynos 2100 variant of the S21 FE has been reported to experience thermal throttling under sustained load, leading to reduced performance during prolonged gaming. The Snapdragon 888 version generally performs better in this regard, but both can get warm. The OnePlus 9R’s Snapdragon 870 is known for its superior thermal efficiency, making it a better choice for hardcore gamers.
❓ Is the 2MP macro camera on the S21 FE actually useful for taking detailed close-up photos?
While present, the 2MP macro camera on the S21 FE is largely a marketing feature. Its low resolution results in images lacking detail and sharpness. It’s usable for casual snapshots, but serious photographers will find it underwhelming. The S21 FE’s main camera can produce acceptable close-up shots with sufficient lighting.
❓ Does the OnePlus 9R support 90fps gameplay in demanding titles like PUBG Mobile?
The OnePlus 9R’s Snapdragon 870 is capable of delivering smooth gameplay at 90fps in PUBG Mobile, but achieving this consistently requires optimized game settings and potentially enabling gaming mode. The phone’s thermal management plays a crucial role in maintaining stable frame rates during extended sessions.
❓ How does the software update policy differ between the OnePlus 9R and the Samsung Galaxy S21 FE?
Samsung generally provides longer and more frequent software updates than OnePlus. The S21 FE is likely to receive several years of Android OS updates and security patches, while the 9R’s update support is more limited. This is a significant consideration for users who prioritize long-term software support and security.