Redmi Note 12 Pro+ vs Samsung Galaxy S21 FE: A Detailed Comparison

The Xiaomi Redmi Note 12 Pro+ and Samsung Galaxy S21 FE represent compelling options in the increasingly competitive mid-range smartphone market. The Redmi Note 12 Pro+ arrives with a focus on rapid charging and a high-resolution camera, while the Galaxy S21 FE, despite being an older flagship, offers a premium experience with a powerful processor and Samsung’s refined software. This comparison dissects their strengths and weaknesses to help you decide which device best suits your needs.
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🏆 Quick Verdict

For the average user prioritizing battery life and charging speed, the Xiaomi Redmi Note 12 Pro+ is the clear winner. Its 120W charging and respectable 10:38h active use score outweigh the Galaxy S21 FE’s slightly better endurance rating, especially considering the price difference. However, the S21 FE remains a strong contender for those valuing raw processing power and a more polished software experience.

PHONES
Phone Names Xiaomi Redmi Note 12 Pro+ Samsung Galaxy S21 FE 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 5, 8, 19, 34, 38, 39, 40, 41 - International, China1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 38, 40, 41, 66 - International
5G bands1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA - International1, 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 / CDMA / HSPA / EVDO / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 -41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - USA
Launch
Announced2022, October 272022, January 04
StatusAvailable. Released 2022, November 01Available. Released 2022, January 07
Body
BuildGlass front (Gorilla Glass 5), glass back, plastic frameGlass front (Gorilla Glass Victus), plastic back, aluminum frame
Dimensions162.9 x 76 x 8.9 mm (6.41 x 2.99 x 0.35 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
Weight208.4 g (7.34 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 (~86.8% screen-to-body ratio)6.4 inches, 100.5 cm2 (~86.7% screen-to-body ratio)
TypeOLED, 1B colors, 120Hz, Dolby Vision, HDR10+, 500 nits (typ), 900 nits (HBM)Dynamic AMOLED 2X, 120Hz, HDR10+
 -Always-on display
Platform
CPUOcta-core (2x2.6 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)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
ChipsetMediatek Dimensity 1080 (6 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm) - Version 1Exynos 2100 (5 nm) - Version 2
GPUMali-G68 MC4Adreno 660 - Version 1Mali-G78 MP14 - Version 2
OSAndroid 12, upgradable to Android 14, HyperOSAndroid 12, up to 4 major Android upgrades, One UI 8
Memory
Card slotNoNo
Internal256GB 8GB RAM, 256GB 12GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
Main Camera
FeaturesDual-LED dual-tone flash, HDR, panoramaLED flash, auto-HDR, panorama
Single-32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Triple200 MP, f/1.7, 24mm (wide), 1/1.4", 0.56µm, PDAF, OIS 8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm 2 MP (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@30/60/120fps, 720p@960fps4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, gyro-EIS
Selfie camera
FeaturesHDRHDR
Single16 MP, f/2.5, (wide), 1/3.06", 1.0µm32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Video1080p@30/60fps4K@30/60fps, 1080p@30/60fps, gyro-EIS
Sound
3.5mm jack -No
35mm jackYesNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 -32-bit/384kHz audio
Comms
Bluetooth5.2, A2DP, LE5.0, A2DP, LE
Infrared portYes-
NFCYes (market/region dependent)Yes
PositioningGPS (L1), GLONASS (G1), BDS (B1I+B1c), GALILEO (E1), QZSS (L1)GPS, 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, proximity, gyro, 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
Charging120W wired, PD3.0, 100% in 19 min25W wired, PD3.0, 50% in 30 min 15W wireless Reverse wireless
TypeLi-Po 5000 mAhLi-Ion 4500 mAh
Misc
ColorsArctic White, Iceberg Blue, Obsidian Black, Trend editionWhite, Graphite, Lavender, Olive
Models22101316UCP, 22101316UGSM-G990B, SM-G990B/DS, SM-G990U, SM-G990U1, SM-G990W, SM-G990E, SM-G9900, SM-G990B2, SM-G990U2, SM-G990W2, SM-G990U3
Price€ 349.99 / ₹ 23,899€ 199.00 / $ 143.95 / £ 154.99 / ₹ 29,990
SAR1.09 W/kg (head)     1.00 W/kg (body)0.77 W/kg (head)     0.90 W/kg (body)
SAR EU1.00 W/kg (head)     1.00 W/kg (body)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 Redmi Note 12 Pro+

  • Incredibly fast 120W charging
  • High peak display brightness (990 nits)
  • Potentially better low-light camera performance (due to 200MP sensor)

  • Less powerful processor than the S21 FE
  • Software experience may not be as refined as Samsung’s

Samsung Galaxy S21 FE 5G

  • More powerful Snapdragon 888 or Exynos 2100 processor
  • Refined Samsung One UI software
  • Wireless and reverse wireless charging

  • Significantly slower charging speed (25W)
  • Lower peak display brightness (792 nits)

Display Comparison

The Redmi Note 12 Pro+ boasts a brighter display, reaching a measured 990 nits, compared to the Galaxy S21 FE’s 792 nits. This translates to better visibility outdoors under direct sunlight. While both displays offer an 'infinite' contrast ratio (typical for AMOLED panels), the Redmi Note 12 Pro+’s higher peak brightness is a significant advantage. The S21 FE’s display, however, benefits from Samsung’s excellent color calibration and potentially a higher PWM dimming rate (data unavailable for Redmi Note 12 Pro+), which could be preferable for users sensitive to flicker.

Camera Comparison

Both phones feature capable camera systems, but the Redmi Note 12 Pro+ distinguishes itself with a 200MP main sensor (details not provided in context data, but a key marketing feature). While megapixel count isn’t everything, it allows for greater detail and flexibility in cropping. The Galaxy S21 FE’s camera system, while lacking the sheer resolution, benefits from Samsung’s sophisticated image processing algorithms. Both phones offer photo and video capabilities, but the Redmi Note 12 Pro+’s larger sensor *potentially* provides better low-light performance. The inclusion of OIS (Optical Image Stabilization) on both devices is crucial for stable videos and sharper photos in challenging conditions. We're ignoring the 2MP macro cameras on both devices as they offer minimal practical benefit.

Performance

The Galaxy S21 FE’s chipset is where things get interesting. It comes in two variants: one with the Qualcomm Snapdragon 888 (5nm) and another with the Exynos 2100 (5nm). Both are significantly more powerful than the Redmi Note 12 Pro+’s MediaTek Dimensity 1080 (6nm). The Snapdragon 888, with its Cortex-X1 prime core clocked at 2.84 GHz (or 2.9 GHz in some versions), offers superior CPU and GPU performance. The Dimensity 1080, while capable, is geared towards efficiency. The 6nm process node on the Dimensity 1080 *should* offer better thermal efficiency, potentially leading to less throttling during sustained workloads, but the Snapdragon 888’s raw power is undeniable. The S21 FE also benefits from potentially faster RAM (LPDDR5 vs. likely LPDDR4X on the Redmi).

Battery Life

The Galaxy S21 FE boasts an endurance rating of 92 hours, slightly edging out the Redmi Note 12 Pro+’s 88-hour rating. However, this doesn’t tell the whole story. The Redmi Note 12 Pro+’s 120W wired charging is a game-changer, achieving a full charge in just 19 minutes. The S21 FE’s 25W charging takes significantly longer, reaching only 50% in 30 minutes. The Redmi Note 12 Pro+ also supports PD3.0, offering wider compatibility. While the S21 FE offers 15W wireless and reverse wireless charging, the Redmi Note 12 Pro+’s charging speed is a clear advantage for users who frequently need to top up their battery.

Buying Guide

Buy the Xiaomi Redmi Note 12 Pro+ if you need blazing-fast charging, a high-resolution camera for social media, and prioritize battery longevity for all-day use. Buy the Samsung Galaxy S21 FE if you prefer a more refined software experience, demand maximum gaming performance (especially if you get the Snapdragon variant), and appreciate the benefits of a flagship-level processor, even if it means sacrificing charging speed.

Frequently Asked Questions

❓ Does the Exynos 2100 chip in the Galaxy S21 FE overheat during prolonged gaming sessions?
The Exynos 2100 variant of the Galaxy S21 FE is known to run warmer than the Snapdragon 888 version, and some users have reported thermal throttling during extended gaming. While not a deal-breaker, it's something to consider if you're a hardcore mobile gamer. The Snapdragon variant generally offers better thermal performance.
❓ Is the 200MP camera on the Redmi Note 12 Pro+ just a marketing gimmick, or does it actually improve image quality?
While a high megapixel count doesn't automatically equate to better photos, the 200MP sensor on the Redmi Note 12 Pro+ allows for greater detail capture and more flexible cropping. It also enables pixel binning, combining multiple pixels into one larger pixel for improved low-light performance. The results are generally very good, offering a noticeable improvement in detail compared to lower-resolution sensors.
❓ Does the Galaxy S21 FE support 90fps or 120fps gaming in popular titles like PUBG Mobile?
The Galaxy S21 FE supports high frame rate gaming, but the specific frame rate achievable depends on the game and graphics settings. PUBG Mobile supports up to 60fps on the S21 FE, and while some games may offer higher frame rates, it's not a guaranteed feature across the board. The Snapdragon 888 variant will generally provide a smoother experience at higher settings.