Moto G100 vs. Galaxy S21 FE 5G: A Deep Dive into Mid-Range and Flagship Performance

The Motorola Moto G100 and Samsung Galaxy S21 FE 5G represent distinct approaches to the smartphone market. The G100 aims to deliver strong performance and exceptional battery life at a more accessible price point, while the S21 FE brings a near-flagship experience with a focus on a premium display and camera system. This comparison dissects their key differences to determine which device best suits your needs.
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🏆 Quick Verdict

For the average user prioritizing a refined experience and a better camera, the Samsung Galaxy S21 FE 5G is the superior choice. Its Snapdragon 888 (or Exynos 2100) provides a noticeable performance edge, and the brighter display enhances content consumption. However, the Moto G100 excels in battery endurance and offers compelling value for budget-conscious users.

PHONES
Phone Names Motorola Moto G100 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 bandsLTE1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 38, 40, 41, 66 - International
5G bandsSA/NSA1, 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
Announced2025, October 142022, January 04
StatusAvailable. Released 2025, October 20Available. Released 2022, January 07
Body
BuildGlass front, plastic frame, silicone polymer (eco leather) backGlass front (Gorilla Glass Victus), plastic back, aluminum frame
Dimensions166.2 x 76.5 x 8.6 mm (6.54 x 3.01 x 0.34 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
Weight210 g (7.41 oz)177 g (6.24 oz)
 Water repellent designIP68 dust/water resistant (up to 1.5m for 30 min)
Display
Protection-Corning Gorilla Glass Victus
Resolution1080 x 2400 pixels, 20:9 ratio (~392 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size6.72 inches, 109.0 cm2 (~85.8% screen-to-body ratio)6.4 inches, 100.5 cm2 (~86.7% screen-to-body ratio)
TypeIPS LCD, 120Hz, 1050 nits (peak)Dynamic AMOLED 2X, 120Hz, HDR10+
 -Always-on display
Platform
CPUOcta-core (4x2.40 GHz Cortex-A78 & 4x1.95 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
ChipsetQualcomm SM7435-AB Snapdragon 7s Gen 2 (4 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm) - Version 1Exynos 2100 (5 nm) - Version 2
GPUAdreno 710Adreno 660 - Version 1Mali-G78 MP14 - Version 2
OSAndroid 15Android 12, up to 4 major Android upgrades, One UI 8
Memory
Card slotNoNo
Internal256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
 UFS 3.1-
Main Camera
Dual50 MP, f/1.9 (wide), 1/1.95", 0.8µm, PDAF 8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12µm-
FeaturesDual-LED flash, HDR, panoramaLED 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, Laser AF 16 MP, f/2.2, 117˚ (ultrawide), 1.0µm, PDAF 2 MP, f/2.4, (depth) TOF 3D12 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@30fps4K@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
Single32 MP, f/2.2, (wide), 0.7µm32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Video4K@30fps, 1080p@30/60fps4K@30/60fps, 1080p@30/60fps, gyro-EIS
Sound
3.5mm jack YesNo
35mm jackYesNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 -32-bit/384kHz audio
Comms
Bluetooth5.1, A2DP, LE5.0, A2DP, LE
NFCYesYes
PositioningGPS, GALILEO, GLONASS, BDS, QZSSGPS, GLONASS, BDS, GALILEO
RadioNoUnspecified
USBUSB Type-C 2.0, OTGUSB Type-C, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-bandWi-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
 Ready For supportBixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) Samsung DeX (desktop experience support)
Battery
Charging30W wired25W wired, PD3.0, 50% in 30 min 15W wireless Reverse wireless
TypeSi/C Li-Ion 7000 mAhLi-Ion 4500 mAh
Misc
ColorsBlack, Blue, GreenWhite, Graphite, Lavender, Olive
ModelsXT2533-4SM-G990B, SM-G990B/DS, SM-G990U, SM-G990U1, SM-G990W, SM-G990E, SM-G9900, SM-G990B2, SM-G990U2, SM-G990W2, SM-G990U3
PriceAbout 170 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 100h Endurance rating 92h
Camera Photo / Video Photo / Video
Display Contrast ratio: 1427:1 (nominal) Contrast ratio: Infinite (nominal)
Loudspeaker -29.4 LUFS (Average) -26.9 LUFS (Good)
Performance AnTuTu: 556137 (v8) GeekBench: 2860 (v5.1) GFXBench: 47fps (ES 3.1 onscreen) AnTuTu: 566529 (v8), 719696 (v9) GeekBench: 3049 (v5.1) GFXBench: 56fps (ES 3.1 onscreen)

Motorola Moto G100

  • Exceptional battery life (100h endurance)
  • More affordable price point
  • Efficient 4nm Snapdragon 7s Gen 2 chipset

  • Less powerful processor compared to the S21 FE
  • Likely inferior camera performance
  • Missing wireless charging

Samsung Galaxy S21 FE 5G

  • Flagship-level performance with Snapdragon 888/Exynos 2100
  • Brighter and more vibrant display
  • Faster charging and wireless charging capabilities

  • Shorter battery life (92h endurance)
  • Higher price tag
  • Potential for thermal throttling (Exynos variant)

Display Comparison

The Samsung Galaxy S21 FE 5G boasts a significantly brighter display, reaching a measured 792 nits, compared to the Motorola Moto G100’s nominal 1427:1 contrast ratio. While the G100’s contrast ratio suggests deep blacks, the S21 FE’s higher peak brightness translates to better visibility in direct sunlight. Samsung’s ‘Infinite’ contrast ratio (nominal) suggests a superior OLED panel, likely with better black levels. The S21 FE’s display is likely to offer a more immersive viewing experience, particularly for HDR content, though the G100’s size isn’t specified, potentially offering a larger viewing area.

Camera Comparison

Both phones feature photo and video capabilities, but details are limited. The S21 FE likely benefits from Samsung’s advanced image processing algorithms and potentially larger sensor sizes, though specific sensor details are missing. The G100’s camera system is likely more focused on affordability, potentially sacrificing low-light performance and dynamic range. Without specific sensor information, it’s difficult to make a definitive judgment, but Samsung’s history suggests a more refined camera experience. The inclusion of OIS (Optical Image Stabilization) on the S21 FE is highly probable, further enhancing image quality.

Performance

The core difference lies in the chipsets. The Galaxy S21 FE 5G utilizes either the Qualcomm Snapdragon 888 5G (5nm) or the Exynos 2100 (5nm), both built on a smaller 5nm process compared to the Moto G100’s Snapdragon 7s Gen 2 (4nm). While the 4nm process of the 7s Gen 2 is more efficient, the Snapdragon 888’s Cortex-X1 prime core (2.84/2.9 GHz) and more powerful GPU deliver substantially higher peak performance. The G100’s Cortex-A78 cores (2.40 GHz) are capable, but the S21 FE’s architecture provides a clear advantage in demanding applications and gaming. The Exynos variant of the S21 FE may exhibit more thermal throttling under sustained load, but both versions outperform the G100’s chipset.

Battery Life

The Motorola Moto G100 claims an impressive endurance rating of 100 hours, significantly exceeding the Samsung Galaxy S21 FE 5G’s 92 hours. However, this doesn’t tell the whole story. The S21 FE offers faster charging at 25W with PD3.0 (50% in 30 minutes) and includes 15W wireless and reverse wireless charging, features absent on the G100’s 30W wired charging. The G100’s larger endurance rating likely stems from a combination of a larger battery capacity (unspecified) and the more efficient 4nm Snapdragon 7s Gen 2 chipset. While the S21 FE charges faster, the G100 will likely last longer between charges.

Buying Guide

Buy the Motorola Moto G100 if you need maximum battery life and prioritize value for money, and are willing to compromise on camera quality and peak performance. It's ideal for users who heavily rely on their phone throughout the day and engage in less demanding tasks. Buy the Samsung Galaxy S21 FE 5G if you prefer a more polished user experience, a brighter and more vibrant display, and a capable camera system, and are willing to pay a premium for flagship-level performance and features.

Frequently Asked Questions

❓ Does the Exynos 2100 chip in the S21 FE overheat during prolonged gaming sessions?
The Exynos 2100 variant of the S21 FE is known to run warmer than the Snapdragon 888 version, and can experience thermal throttling during extended gaming. While not a deal-breaker, users may notice a slight performance dip after prolonged use. Optimizing game settings and ensuring adequate ventilation can mitigate this issue.
❓ Is the 30W charging on the Moto G100 fast enough compared to the S21 FE's 25W with PD3.0?
While the Moto G100 has slightly higher wattage, the S21 FE’s support for Power Delivery 3.0 (PD3.0) allows for more efficient charging. The S21 FE can reach 50% charge in just 30 minutes, while the G100’s charging speed is likely slower despite the higher wattage. The S21 FE also offers the convenience of wireless charging, which the G100 lacks.
❓ How does the Snapdragon 7s Gen 2 in the Moto G100 handle demanding games like PUBG or Call of Duty?
The Snapdragon 7s Gen 2 is capable of running PUBG and Call of Duty, but you may need to lower graphics settings to achieve consistently smooth frame rates. It won't deliver the same level of performance as the Snapdragon 888 in the S21 FE, but it's still a viable option for casual gaming.