Samsung Galaxy A72 vs S21 FE 5G: Which Samsung Phone Wins?

The Samsung Galaxy A72 and S21 FE 5G represent distinct approaches to the Android experience. The A72, released earlier, prioritized endurance and affordability, while the S21 FE 5G aimed to deliver a flagship-lite experience with a more powerful processor and feature set. This comparison dissects their strengths and weaknesses to determine which device best suits your needs.
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🏆 Quick Verdict

For the average user prioritizing longevity and value, the Samsung Galaxy A72 emerges as the winner. Its significantly superior 117-hour endurance rating outweighs the S21 FE’s performance gains, especially considering the S21 FE’s comparatively shorter 92-hour battery life. However, power users will find the S21 FE’s Snapdragon 888 or Exynos 2100 a compelling upgrade.

PHONES
Phone Names Samsung Galaxy A72 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, 17, 20, 26, 28, 32, 38, 40, 41, 661, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 38, 40, 41, 66 - International
5G bands-1, 3, 5, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA/Sub6 - International
SpeedHSPA, LTEHSPA 42.2/5.76 Mbps, LTE (5CA) Cat19 1600/200 Mbps, 5G
TechnologyGSM / HSPA / LTEGSM / CDMA / HSPA / EVDO / LTE / 5G
 -41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - USA
Launch
Announced2021, March 172022, January 04
StatusAvailable. Released 2021, March 26Available. Released 2022, January 07
Body
BuildGlass front (Gorilla Glass 5), plastic frame, plastic backGlass front (Gorilla Glass Victus), plastic back, aluminum frame
Dimensions165 x 77.4 x 8.4 mm (6.50 x 3.05 x 0.33 in)155.7 x 74.5 x 7.9 mm (6.13 x 2.93 x 0.31 in)
SIM· Nano-SIM· Nano-SIM + Nano-SIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight203 g (7.16 oz)177 g (6.24 oz)
 IP67 dust/water resistant (up to 1m for 30 min)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 (~394 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size6.7 inches, 107.8 cm2 (~84.4% screen-to-body ratio)6.4 inches, 100.5 cm2 (~86.7% screen-to-body ratio)
TypeSuper AMOLED, 90Hz, 800 nits (HBM)Dynamic AMOLED 2X, 120Hz, HDR10+
 Always-on displayAlways-on display
Platform
CPUOcta-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)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 SM7125 Snapdragon 720G (8 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm) - Version 1Exynos 2100 (5 nm) - Version 2
GPUAdreno 618Adreno 660 - Version 1Mali-G78 MP14 - Version 2
OSAndroid 11, upgradable to Android 12, One UI 4.1Android 12, up to 4 major Android upgrades, One UI 8
Memory
Card slotmicroSDXC (uses shared SIM slot)No
Internal128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
Main Camera
FeaturesLED flash, panorama, HDRLED flash, auto-HDR, panorama
Quad64 MP, f/1.8, 26mm (wide), 1/1.7", 0.8µm, PDAF, OIS 8 MP, f/2.4, (telephoto), 1.0µm, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 123˚ (ultrawide), 1.12µm 5 MP (macro)-
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@30fps, 1080p@30/60fps; gyro-EIS4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, gyro-EIS
Selfie camera
FeaturesHDRHDR
Single32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Video4K@30fps, 1080p@30fps4K@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
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
NFCYes (market/region dependent)Yes
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, BDS, GALILEO
RadioFM radioUnspecified
USBUSB Type-C 2.0, OTGUSB Type-C, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
 Virtual proximity sensingBixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified) Samsung DeX (desktop experience support)
Battery
Charging25W wired25W wired, PD3.0, 50% in 30 min 15W wireless Reverse wireless
TypeLi-Ion 5000 mAhLi-Ion 4500 mAh
Misc
ColorsAwesome Black, Awesome White, Awesome Violet, Awesome BlueWhite, Graphite, Lavender, Olive
ModelsSM-A725F, SM-A725F/DS, SM-A725M, SM-A725M/DSSM-G990B, SM-G990B/DS, SM-G990U, SM-G990U1, SM-G990W, SM-G990E, SM-G9900, SM-G990B2, SM-G990U2, SM-G990W2, SM-G990U3
Price£ 174.89 / € 359.99€ 199.00 / $ 143.95 / £ 154.99 / ₹ 29,990
SAR-0.77 W/kg (head)     0.90 W/kg (body)
SAR EU0.23 W/kg (head)     1.17 W/kg (body)0.95 W/kg (head)     1.48 W/kg (body)
Tests
Battery life Endurance rating 117h Endurance rating 92h
Camera Photo / Video Photo / Video
Display Contrast ratio: Infinite (nominal) Contrast ratio: Infinite (nominal)
Loudspeaker -26.4 LUFS (Good) -26.9 LUFS (Good)
Performance AnTuTu: 279342 (v8) GeekBench: 6483 (v4.4), 1627 (v5.1) GFXBench: 15fps (ES 3.1 onscreen) AnTuTu: 566529 (v8), 719696 (v9) GeekBench: 3049 (v5.1) GFXBench: 56fps (ES 3.1 onscreen)

Samsung Galaxy A72

  • Exceptional battery life (117h endurance)
  • Brighter display for outdoor visibility (825 nits)
  • More affordable price point

  • Less powerful processor for demanding tasks
  • Lacks wireless charging capabilities

Samsung Galaxy S21 FE 5G

  • Significantly faster processor (Snapdragon 888/Exynos 2100)
  • Wireless and reverse wireless charging
  • Faster charging speeds (50% in 30 min)

  • Shorter battery life (92h endurance)
  • Slightly dimmer display (792 nits)
  • Higher price

Display Comparison

Both the A72 and S21 FE feature displays with an 'Infinite' contrast ratio, typical of Samsung’s AMOLED panels. However, the A72 boasts a measured peak brightness of 825 nits, exceeding the S21 FE’s 792 nits. This difference translates to better visibility under direct sunlight. While both offer excellent color reproduction, the S21 FE’s panel, being a flagship-adjacent device, likely benefits from more refined color calibration. Neither specification details refresh rate, but the S21 FE is widely known to have a 120Hz adaptive refresh rate, while the A72 is 90Hz, offering smoother scrolling and animations.

Camera Comparison

Both phones offer versatile camera systems, but the S21 FE likely holds an edge in image processing and low-light performance. While both are listed as having Photo/Video capabilities, the S21 FE benefits from the more advanced image signal processor (ISP) within the Snapdragon 888 or Exynos 2100. The A72’s camera relies on the ISP within the Snapdragon 720G, which is less capable. Details on sensor sizes are missing, but the S21 FE’s flagship lineage suggests a larger primary sensor, capturing more light and detail. The inclusion of OIS (Optical Image Stabilization) is expected on both, but the S21 FE’s implementation is likely more refined. The 2MP macro cameras on both devices are largely a marketing gimmick and offer limited practical benefit.

Performance

The performance gap is the most significant differentiator. The A72’s Qualcomm Snapdragon 720G (8nm) is a capable mid-range chip, but it’s dwarfed by the S21 FE’s Snapdragon 888 (5nm) or Exynos 2100 (5nm). The 5nm fabrication process of the S21 FE’s chipsets offers superior power efficiency and transistor density, resulting in substantially faster CPU and GPU performance. The S21 FE’s CPU configuration – either a Cortex-X1 prime core paired with Cortex-A78 and A55 cores – provides a noticeable advantage in multitasking and demanding applications. The A72’s Kryo 465 cores, while efficient, simply can’t compete. The S21 FE’s GPU will also deliver a far superior gaming experience.

Battery Life

Battery life is where the A72 truly shines. Its endurance rating of 117 hours significantly surpasses the S21 FE’s 92 hours. This difference is attributable to the more efficient Snapdragon 720G and potentially a larger battery capacity (not specified in the data). While both support 25W wired charging, the S21 FE adds the convenience of 15W wireless charging and reverse wireless charging, features absent on the A72. The S21 FE also claims a 50% charge in 30 minutes, suggesting faster charging circuitry, but the A72’s longer overall endurance mitigates the need for frequent top-ups.

Buying Guide

Buy the Samsung Galaxy A72 if you need exceptional battery life, a consistently bright display for outdoor use, and a reliable all-around experience without breaking the bank. Buy the Samsung Galaxy S21 FE 5G if you prioritize raw processing power for gaming and demanding applications, faster charging speeds, and the convenience of wireless charging, and are willing to compromise on battery endurance.

Frequently Asked Questions

❓ Does the Exynos 2100 chip in some S21 FE models suffer from thermal throttling during extended gaming sessions?
While the Exynos 2100 is a powerful chip, it has been known to run hotter than the Snapdragon 888 under sustained load. This can lead to thermal throttling, reducing performance during prolonged gaming. The Snapdragon variant generally exhibits better thermal management, but both chips are capable of delivering a good gaming experience for most users.
❓ Is the 2MP macro camera on either phone worth using, or is it just a marketing feature?
The 2MP macro cameras on both the A72 and S21 FE are largely marketing features. Their low resolution and fixed focus limit their usefulness. Images captured with these cameras typically lack detail and sharpness. You're better off using the main camera and cropping in for close-up shots.
❓ Can the Samsung Galaxy S21 FE 5G reliably maintain 60fps in demanding games like PUBG Mobile at maximum settings?
The S21 FE 5G, particularly the Snapdragon 888 variant, can generally maintain 60fps in PUBG Mobile at maximum settings. However, prolonged gaming sessions may lead to some frame rate dips due to thermal throttling. The Exynos variant may experience more noticeable frame rate fluctuations.
❓ How does the difference in chipset architecture (Snapdragon 720G vs Snapdragon 888/Exynos 2100) impact everyday tasks like browsing and social media?
For everyday tasks like browsing, social media, and email, the difference in chipset performance between the A72 and S21 FE is less noticeable. Both phones will handle these tasks smoothly. However, the S21 FE’s more powerful processor will result in faster app loading times and snappier multitasking.