Xiaomi Mi 11X vs Samsung Galaxy S21 FE 5G: Which Flagship Offers the Best Value?

The Xiaomi Mi 11X and Samsung Galaxy S21 FE 5G represent compelling options in the upper-midrange smartphone market. The Mi 11X, launched with a focus on performance-per-dollar, now faces competition from the S21 FE, Samsung’s attempt to deliver a ‘Fan Edition’ with flagship features at a more accessible price point. This comparison dissects the key differences to determine which device best suits your needs.
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🏆 Quick Verdict

For the average user prioritizing a vibrant display and Samsung’s software ecosystem, the Galaxy S21 FE 5G is the better choice. However, the Xiaomi Mi 11X delivers exceptional performance for its price, making it ideal for gamers and power users on a tighter budget.

PHONES
Phone Names Xiaomi Mi 11X Samsung Galaxy S21 FE 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 5, 7, 8, 38, 40, 411, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 38, 40, 41, 66 - International
5G bands77, 78 Sub61, 3, 5, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA/Sub6 - International
SpeedHSPA, LTE, 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, April 232022, January 04
StatusAvailable. Released 2021, April 27Available. Released 2022, January 07
Body
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5)Glass front (Gorilla Glass Victus), plastic back, aluminum frame
Dimensions163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 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
Weight196 g (6.91 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 (~395 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio)6.4 inches, 100.5 cm2 (~86.7% screen-to-body ratio)
TypeSuper AMOLED, 120Hz, HDR10+, 1300 nits (peak)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 11, MIUI 12Android 12, up to 4 major Android upgrades, One UI 8
Memory
Card slotNoNo
Internal128GB 6GB RAM, 128GB 8GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
 UFS 3.1-
Main Camera
FeaturesLED flash, HDR, panoramaLED flash, auto-HDR, panorama
Single20 MP, f/2.5, (wide), 1/3.4", 0.8µm32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Triple48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide) 5 MP, f/2.4, 50mm (macro)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@30fps, 1080p@30/60/120/240/960fps, gyro-EIS4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, gyro-EIS
Selfie camera
FeaturesHDRHDR
Single20 MP, f/2.5, (wide), 1/3.4", 0.8µm32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Video1080p@30fps, 720p@120fps4K@30/60fps, 1080p@30/60fps, gyro-EIS
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 24-bit/192kHz audio32-bit/384kHz audio
Comms
Bluetooth5.1, A2DP, LE5.0, A2DP, LE
Infrared portYes-
NFCNoYes
PositioningGPS (L1+L5), GLONASS, BDS, NavICGPS, GLONASS, BDS, GALILEO
RadioNoUnspecified
USBUSB Type-C 2.0, OTGUSB Type-C, 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 (side-mounted), 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
Charging33W wired, PD3.0, QC3 100% in 52 min25W wired, PD3.0, 50% in 30 min 15W wireless Reverse wireless
TypeLi-Po 4520 mAhLi-Ion 4500 mAh
Misc
ColorsCelestial Silver, Lunar White, Cosmic BlackWhite, Graphite, Lavender, Olive
ModelsM2012K11AISM-G990B, SM-G990B/DS, SM-G990U, SM-G990U1, SM-G990W, SM-G990E, SM-G9900, SM-G990B2, SM-G990U2, SM-G990W2, SM-G990U3
PriceAbout 330 EUR€ 199.00 / $ 143.95 / £ 154.99 / ₹ 29,990
SAR0.86 W/kg (head)     0.69 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)

Xiaomi Mi 11X

  • Excellent performance-to-price ratio
  • Snapdragon 870 offers sustained performance
  • Faster wired charging than S21 FE

  • No wireless charging
  • Display likely less bright than S21 FE

Samsung Galaxy S21 FE 5G

  • Brighter and more vibrant display
  • Wireless and reverse wireless charging
  • Samsung’s One UI software

  • Snapdragon 888/Exynos 2100 can throttle under load
  • Potentially higher price

Display Comparison

The Samsung Galaxy S21 FE 5G boasts a significantly brighter display, reaching a measured 792 nits, compared to an assumed lower peak brightness on the Mi 11X (data unavailable). This makes the S21 FE more usable in direct sunlight. While both likely utilize AMOLED panels, the S21 FE’s ‘Infinite’ contrast ratio suggests superior black levels. The lack of refresh rate data for the Mi 11X means the S21 FE likely has an advantage in smoothness, assuming it supports a higher refresh rate. The S21 FE’s brightness is a clear win for outdoor visibility.

Camera Comparison

Both phones offer capable camera systems, but detailed sensor information is limited. The S21 FE likely benefits from Samsung’s advanced image processing algorithms, potentially delivering more vibrant and shareable photos. The Mi 11X’s camera performance will depend heavily on its sensor size and lens quality, which are currently unknown. The presence of OIS (Optical Image Stabilization) on both devices is crucial for stable video recording and low-light photography. The S21 FE’s video capabilities are likely superior due to Samsung’s established expertise in this area. We'll disregard the likely inclusion of a 2MP macro camera on both devices as largely inconsequential.

Performance

The core difference lies in the chipsets. The Mi 11X features the Qualcomm Snapdragon 870 5G (7nm), while the S21 FE comes in two variants: Snapdragon 888 5G (5nm) or Exynos 2100 (5nm). The Snapdragon 888, despite its higher clock speeds (up to 2.84/2.9 GHz Cortex-X1), is known to throttle under sustained load due to its 5nm process and power consumption. The Snapdragon 870, built on a 7nm process, offers excellent sustained performance with less thermal throttling. The Exynos 2100 variant of the S21 FE may exhibit similar throttling behavior to the Snapdragon 888. The Mi 11X’s CPU configuration (1x3.2 GHz Kryo 585) is competitive, and its focus on efficiency provides a smoother long-term experience.

Battery Life

Both devices achieve an endurance rating of 92 hours, suggesting similar real-world battery life despite the Mi 11X’s smaller charging wattage (33W vs 25W). The S21 FE offers the added convenience of 15W wireless charging and reverse wireless charging, features absent on the Mi 11X. While the Mi 11X claims 100% charge in 52 minutes, the S21 FE reaches 50% in 30 minutes. The S21 FE’s wireless charging capabilities provide flexibility, but the Mi 11X’s faster wired charging is still competitive.

Buying Guide

Buy the Xiaomi Mi 11X if you need raw processing power for gaming and demanding applications, and prioritize value for money above all else. Its Snapdragon 870 offers a fantastic experience without the potential thermal issues of the Snapdragon 888. Buy the Samsung Galaxy S21 FE 5G if you prefer a brighter, more color-accurate display, Samsung’s One UI software, and the convenience of wireless charging and reverse wireless charging.

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 is known to generate more heat than the Snapdragon 888, and both are prone to throttling under sustained load. While Samsung has implemented thermal management solutions, users may experience performance drops during prolonged gaming. The Mi 11X’s Snapdragon 870 is less susceptible to this issue.
❓ Is the 2MP macro camera on either phone worth using?
Generally, 2MP macro cameras offer limited image quality and detail. They are often included for marketing purposes but rarely deliver significant improvements over using the main camera in close-up mode. Don't base your purchasing decision on the presence of a 2MP macro lens.
❓ Does the Samsung Galaxy S21 FE support 90fps gameplay in PUBG Mobile?
The Samsung Galaxy S21 FE does support 90fps gameplay in PUBG Mobile, but only on the highest graphics settings and with the frame rate setting enabled in the game. Performance may vary depending on the chipset version (Snapdragon or Exynos).
❓ How does the Mi 11X handle multitasking compared to the S21 FE?
Both phones feature ample RAM (typically 8GB) and capable processors, allowing for smooth multitasking. The Mi 11X’s Snapdragon 870 excels at sustained performance, which can be beneficial when switching between multiple demanding apps. The S21 FE’s performance will depend on the chipset version and thermal management.