Motorola Moto G100 vs Samsung Galaxy S21 FE 5G: Which Flagship Fighter Reigns Supreme?

The Motorola Moto G100 (2021) and the Samsung Galaxy S21 FE 5G represent compelling options in a crowded smartphone market. The G100, released in 2021, aimed to deliver flagship-level performance at a more accessible price point. The S21 FE, arriving later, sought to capture the essence of the S21 series in a 'Fan Edition' with a focus on key features and a competitive price. This comparison dissects their strengths and weaknesses to determine which device offers the best value.
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🏆 Quick Verdict

For the average user prioritizing a polished experience, refined camera performance, and wireless charging, the Samsung Galaxy S21 FE 5G is the better choice. However, the Motorola Moto G100 offers a significant performance advantage with its Snapdragon 870, making it ideal for power users and gamers who prioritize raw speed over all else.

PHONES
Phone Names Motorola Moto G100 (2021) Samsung Galaxy S21 FE 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 bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 32, 34, 38, 39, 40, 41, 42, 43, 661, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 38, 40, 41, 66 - International
5G bands1, 3, 5, 7, 8, 28, 38, 41, 66, 77, 78 SA/NSA/Sub61, 3, 5, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA/Sub6 - International
SpeedHSPA 42.2/5.76 Mbps, LTE Cat20 2000/200 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 252022, January 04
StatusAvailable. Released 2021, April 15Available. Released 2022, January 07
Body
Build-Glass front (Gorilla Glass Victus), plastic back, aluminum frame
Dimensions168.4 x 74 x 9.7 mm (6.63 x 2.91 x 0.38 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
Weight207 g (7.30 oz)177 g (6.24 oz)
 -IP68 dust/water resistant (up to 1.5m for 30 min)
Display
Protection-Corning Gorilla Glass Victus
Resolution1080 x 2520 pixels, 21:9 ratio (~409 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size6.7 inches, 104.9 cm2 (~84.1% screen-to-body ratio)6.4 inches, 100.5 cm2 (~86.7% screen-to-body ratio)
TypeIPS LCD, 90Hz, HDR10, 560 nits (HBM)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, upgradable to Android 12Android 12, up to 4 major Android upgrades, One UI 8
Memory
Card slotmicroSDXC (uses shared SIM slot)No
Internal128GB 8GB RAM, 256GB 12GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
Main Camera
FeaturesLaser AF, Dual-LED flash, ring flash (macro mode), panorama, HDRLED flash, auto-HDR, panorama
Single-32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Triple64 MP, f/1.7, (wide), 1/2.0", 0.7µm, PDAF 16 MP, f/2.2, 117˚ (ultrawide), 1.0µm, PDAF TOF 3D Auxiliary lens12 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
Video6K@30fps, 4K@30/60fps, 1080p@30/60/120fps, gyro-EIS4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, gyro-EIS
Selfie camera
Dual16 MP, f/2.2, (wide), 1.0µm 8 MP, f/2.4, 118˚ (ultrawide), 1.12µm-
FeaturesHDRHDR
Single-32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Video1080p@30fps4K@30/60fps, 1080p@30/60fps, gyro-EIS
Sound
3.5mm jack -No
35mm jackYesNo
Loudspeaker YesYes, with stereo speakers
 -32-bit/384kHz audio
Comms
Bluetooth5.1, A2DP, LE5.0, A2DP, LE
NFCYesYes
PositioningGPS (L1+L5), GLONASS, GALILEOGPS, 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 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
Charging20W wired25W wired, PD3.0, 50% in 30 min 15W wireless Reverse wireless
TypeLi-Po 5000 mAhLi-Ion 4500 mAh
Misc
ColorsIridescent Sky, Iridescent Ocean, Slate GreyWhite, Graphite, Lavender, Olive
ModelsXT2125, XT2125-4SM-G990B, SM-G990B/DS, SM-G990U, SM-G990U1, SM-G990W, SM-G990E, SM-G9900, SM-G990B2, SM-G990U2, SM-G990W2, SM-G990U3
PriceAbout 210 EUR€ 199.00 / $ 143.95 / £ 154.99 / ₹ 29,990
SAR-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)

Motorola Moto G100 (2021)

  • Superior raw processing power with Snapdragon 870
  • Larger display for immersive media consumption
  • Expandable storage via microSD card

  • Slower charging speeds (20W)
  • Less refined camera image processing
  • Bulkier design

Samsung Galaxy S21 FE 5G

  • Faster charging with 25W wired, 15W wireless, and reverse wireless
  • More polished camera system with better image quality
  • More compact and ergonomic design

  • Potentially lower sustained performance due to thermal throttling (especially Exynos variant)
  • No expandable storage
  • Higher price point (typically)

Display Comparison

The Samsung Galaxy S21 FE boasts a higher peak brightness of 792 nits compared to the Moto G100’s 613 nits, resulting in better visibility under direct sunlight. While the Moto G100’s 1427:1 contrast ratio is respectable, Samsung’s ‘Infinite’ contrast ratio (typical of AMOLED panels) delivers deeper blacks and more vibrant colors. Both displays utilize a 120Hz refresh rate, but Samsung’s Dynamic AMOLED 2X panel is likely to offer superior color accuracy and viewing angles. The S21 FE’s smaller size (6.4” vs 6.7”) may appeal to users who prefer a more manageable form factor.

Camera Comparison

Both phones offer versatile camera systems, but Samsung holds an edge in image processing and overall consistency. While both can capture photo and video, the S21 FE’s image processing algorithms are more refined, delivering more natural-looking photos with better dynamic range. The Moto G100’s camera performance is good, but it can sometimes struggle with color accuracy and detail in challenging lighting conditions. The S21 FE’s superior video stabilization and advanced features like Dual Recording provide a more polished video experience. The presence of OIS on the S21 FE’s main sensor further enhances image quality and stability.

Performance

The core difference lies in the chipsets. The Moto G100 features the Qualcomm Snapdragon 870 5G (7nm), while the S21 FE comes in two variants: one with the Snapdragon 888 5G (5nm) and another with the Exynos 2100 (5nm). The Snapdragon 888 and Exynos 2100, built on a smaller 5nm process, generally offer better power efficiency and slightly higher peak performance than the 7nm Snapdragon 870. However, the G100’s larger heat sink and less aggressive thermal throttling may allow it to sustain peak performance for longer periods during intensive tasks. The S21 FE’s CPU, with its Cortex-X1 prime core (versions 1 & 2), provides a noticeable boost in single-core performance, beneficial for everyday tasks and app responsiveness.

Battery Life

The Moto G100 boasts an endurance rating of 100 hours, slightly better than the S21 FE’s 92 hours. However, this doesn’t tell the whole story. The S21 FE’s 25W wired charging, with support for PD3.0 and a 50% charge in 30 minutes, is significantly faster than the G100’s 20W charging. Furthermore, the S21 FE adds the convenience of 15W wireless charging and reverse wireless charging, features absent on the G100. While the G100’s larger battery capacity provides longer overall runtime, the S21 FE’s faster charging and wireless capabilities offer a more convenient user experience.

Buying Guide

Buy the Motorola Moto G100 (2021) if you need uncompromising performance for demanding tasks like video editing or gaming, and prioritize a larger display and expandable storage. Buy the Samsung Galaxy S21 FE 5G if you prefer a more compact and refined design, a superior camera system with consistent image processing, and the convenience of wireless charging and a more established software ecosystem.

Frequently Asked Questions

❓ Does the Exynos 2100 chip in the S21 FE suffer from overheating issues?
The Exynos 2100 variant of the S21 FE has been reported to experience more thermal throttling than the Snapdragon 888 version, particularly during prolonged gaming sessions. While not a crippling issue, users may notice a slight dip in performance after extended use. The Snapdragon variant generally maintains cooler temperatures and more consistent performance.
❓ Is the 2MP macro camera on either phone actually useful?
Generally, 2MP macro cameras on smartphones offer limited utility. The low resolution results in images lacking detail and sharpness. While they can be fun for experimentation, don't rely on them for high-quality close-up photography. The S21 FE's overall camera system is strong enough that the macro lens is largely superfluous.
❓ Can the Moto G100 handle demanding games like PUBG Mobile at 90fps?
The Moto G100, with its Snapdragon 870, is capable of running PUBG Mobile at high frame rates, potentially reaching 90fps with optimized settings. However, achieving a consistently stable 90fps may require lowering graphics settings to manage thermals and prevent frame drops during intense gameplay.
❓ What are the long-term software support commitments for each device?
Samsung typically provides longer software support for its devices. The S21 FE is expected to receive several years of Android OS updates and security patches. Motorola’s software support is generally shorter, with the G100 likely receiving fewer major Android updates compared to the S21 FE.