vivo S12 vs. Samsung Galaxy S21 FE 5G: Which Mid-Range Flagship Reigns Supreme?

The vivo S12 and Samsung Galaxy S21 FE 5G represent compelling options in the increasingly competitive mid-range flagship space. The S12, powered by the Mediatek Dimensity 1100, aims for a balance of performance and style. Meanwhile, the S21 FE, with its Snapdragon 888 or Exynos 2100 variants, attempts to deliver a near-flagship experience at a more accessible price point. This comparison dissects their key differences to determine which device best suits your needs.
Phones Images

🏆 Quick Verdict

For the average user prioritizing consistent performance and faster charging, the vivo S12 offers a compelling package. While the Galaxy S21 FE boasts a brighter display and potentially more powerful processor (depending on the version), the S12’s Dimensity 1100 provides excellent efficiency and a smoother overall experience, especially considering the price difference.

PHONES
Phone Names vivo S12 Samsung Galaxy S21 FE 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 32, 38, 40, 41, 66 - International
5G bands1, 3, 5, 8, 28, 41, 77, 78 SA/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 / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 CDMA2000 1x 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - USA
Launch
Announced2021, December 222022, January 04
StatusAvailable. Released 2021, December 30Available. Released 2022, January 07
Body
Build-Glass front (Gorilla Glass Victus), plastic back, aluminum frame
Dimensions157.2 x 72.4 x 7.4 or 7.6 mm155.7 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
Weight179 g or 181 g (6.31 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 2400 pixels, 20:9 ratio (~409 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size6.44 inches, 100.1 cm2 (~88.0% screen-to-body ratio)6.4 inches, 100.5 cm2 (~86.7% screen-to-body ratio)
TypeAMOLED, 90Hz, HDR10+Dynamic AMOLED 2X, 120Hz, HDR10+
 -Always-on display
Platform
CPUOcta-core (4x2.6 GHz Cortex-A78 & 4x2.0 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 1100 (6 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm) - Version 1Exynos 2100 (5 nm) - Version 2
GPUMali-G77 MC9Adreno 660 - Version 1Mali-G78 MP14 - Version 2
OSAndroid 11, OriginOS OceanAndroid 12, up to 4 major Android upgrades, One UI 8
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
 UFS 3.1-
Main Camera
Dual44 MP, f/2.0, (wide), AF 8 MP, f/2.3, 105˚ (ultrawide)-
FeaturesDual-LED flash, HDR, panoramaLED flash, auto-HDR, panorama
Single-32 MP, f/2.2, 26mm (wide), 1/2.74", 0.8µm
Triple108 MP, f/1.9, 26mm (wide), 1/1.52", PDAF 8 MP, f/2.2, 120˚, 16mm (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@30fps, gyro-EIS4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, gyro-EIS
Selfie camera
Dual44 MP, f/2.0, (wide), AF 8 MP, f/2.3, 105˚ (ultrawide)-
FeaturesDual-LED flash, HDRHDR
Single-32 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 NoNo
35mm jackNoNo
Loudspeaker YesYes, with stereo speakers
 24-bit/192kHz audio32-bit/384kHz audio
Comms
Bluetooth5.2, A2DP, LE, aptX HD5.0, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDS, QZSSGPS, GLONASS, BDS, GALILEO
RadioNoUnspecified
USBUSB Type-C, 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, 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
Charging44W wired25W wired, PD3.0, 50% in 30 min 15W wireless Reverse wireless
Type4200 mAhLi-Ion 4500 mAh
Misc
ColorsBlack, Blue, YellowWhite, Graphite, Lavender, Olive
ModelsV2162ASM-G990B, SM-G990B/DS, SM-G990U, SM-G990U1, SM-G990W, SM-G990E, SM-G9900, SM-G990B2, SM-G990U2, SM-G990W2, SM-G990U3
PriceAbout 390 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)

vivo S12

  • Faster 44W wired charging
  • Potentially better thermal management due to Dimensity 1100's efficiency
  • Competitive price point

  • Display likely less bright than S21 FE
  • Chipset potentially less powerful than Snapdragon 888/Exynos 2100

Samsung Galaxy S21 FE 5G

  • Brighter display for outdoor visibility
  • Potentially higher peak performance (Snapdragon 888/Exynos 2100)
  • Wireless and reverse wireless charging

  • Slower 25W wired charging
  • Potential for thermal throttling with Snapdragon 888
  • Chipset performance varies between Snapdragon and Exynos versions

Display Comparison

The Samsung Galaxy S21 FE 5G clearly leads in display brightness, achieving a measured 792 nits. While the vivo S12’s peak brightness isn’t specified, it’s unlikely to match the S21 FE. The S21 FE’s ‘Infinite’ contrast ratio suggests a typical AMOLED panel, offering deep blacks. Both phones likely utilize high refresh rate panels, though this isn't specified for the S12. The S21 FE’s superior brightness makes it more usable outdoors in direct sunlight, a significant advantage for many users.

Camera Comparison

Both phones feature capable camera systems, but detailed sensor information is limited. The context data only indicates 'Photo / Video' capabilities for both. The S21 FE likely benefits from Samsung’s established image processing algorithms and potentially larger main sensor. The S12’s camera performance will depend heavily on software optimization. The presence of a 2MP macro camera on either device is largely irrelevant, offering minimal benefit over the main sensor. Without further details, it’s difficult to definitively declare a winner, but Samsung’s track record suggests a slight edge in image quality.

Performance

The Galaxy S21 FE’s chipset is a key differentiator, offering two variants: the Qualcomm Snapdragon 888 (5nm) and the Exynos 2100 (5nm). Both are built on a smaller 5nm process compared to the vivo S12’s 6nm Dimensity 1100. The Snapdragon 888, with its Cortex-X1 prime core clocked at 2.84 GHz (or 2.9 GHz in Version 2), offers a theoretical performance advantage over the Dimensity 1100’s Cortex-A78 cores at 2.6 GHz. However, the Snapdragon 888 is known for thermal throttling under sustained load, a potential issue the Dimensity 1100’s larger node and potentially more efficient design may mitigate. The S21 FE’s LPDDR5 RAM is standard for this class, while the S12’s RAM type is unspecified.

Battery Life

Both devices achieve an endurance rating of 92 hours, suggesting comparable real-world battery life despite differing battery capacities (unspecified for the S12). However, charging speeds are significantly different. The vivo S12’s 44W wired charging is considerably faster than the S21 FE’s 25W wired charging, allowing for quicker top-ups. The S21 FE also offers 15W wireless charging and reverse wireless charging, features absent on the S12. The S21 FE’s 50% charge in 30 minutes with 25W charging is slower than what the S12 likely achieves with its 44W system.

Buying Guide

Buy the vivo S12 if you need a phone with consistently fast charging (44W) and a balanced, efficient processor for everyday tasks and moderate gaming. Buy the Samsung Galaxy S21 FE 5G if you prioritize a brighter, more vibrant display, and potentially higher peak performance for demanding applications, and are willing to accept slower charging and potential thermal throttling depending on the chipset version.

Frequently Asked Questions

❓ Does the Snapdragon 888 in the S21 FE overheat during extended gaming sessions?
The Snapdragon 888 is known to generate significant heat under sustained load, potentially leading to thermal throttling and reduced performance during long gaming sessions. While Samsung implemented cooling solutions, it remains a concern, especially compared to the potentially more efficient Dimensity 1100 in the vivo S12.
❓ 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 provide a significant improvement over using the main camera in a close-up mode. Don't base your purchasing decision on this feature.
❓ Which phone is better for playing PUBG Mobile at high frame rates?
The Samsung Galaxy S21 FE, particularly the Snapdragon 888 variant, *should* be capable of maintaining higher frame rates in PUBG Mobile. However, this is dependent on game optimization and thermal management. The vivo S12 can likely run PUBG Mobile smoothly, but may not achieve the same peak frame rates.
❓ Does the Samsung Galaxy S21 FE support 90Hz or 120Hz refresh rate?
The Samsung Galaxy S21 FE supports a 120Hz adaptive refresh rate, providing smoother scrolling and animations compared to a standard 60Hz display. This contributes to a more responsive and fluid user experience.