Asus Zenfone 7 vs Samsung Galaxy S20+ 5G: A Detailed Comparison

Released in 2020, both the Asus Zenfone 7 and Samsung Galaxy S20+ 5G represent compelling flagship options, though they approach the market from different angles. The Zenfone 7, with its innovative flip camera, aimed to disrupt the status quo, while the S20+ 5G offered a polished, feature-rich experience from a market leader. Now, with price drops on both devices, the question of which offers the best value is more relevant than ever.
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🏆 Quick Verdict

For the average user prioritizing a well-rounded experience with a vibrant display and established brand support, the Samsung Galaxy S20+ 5G (Snapdragon variant) is the better choice. However, the Zenfone 7’s unique flip camera and competitive performance make it a strong contender for those seeking something different and value-focused.

PHONES
Phone Names Asus Zenfone 7 Samsung Galaxy S20+ 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 29, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G986B
5G bands1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 77, 78 SA/NSA1, 3, 5, 7, 8, 28, 40, 77, 78 SA/NSA/Sub6 - SM-G986B
SpeedHSPA 42.2/5.76 Mbps, LTE (5CA) Cat19 1800/150 Mbps, 5G 3.6 Gbps DLHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
TechnologyGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
Launch
Announced2020, August 26. Released 2020, September 012020, February 11
StatusDiscontinuedAvailable. Released 2020, March 06
Body
BuildGlass front (Gorilla Glass 6), glass back (Gorilla Glass 3), aluminum frameGlass front (Gorilla Glass 6), glass back (Gorilla Glass 6), aluminum frame
Dimensions165.1 x 77.3 x 9.6 mm (6.5 x 3.04 x 0.38 in)161.9 x 73.7 x 7.8 mm (6.37 x 2.90 x 0.31 in)
SIMNano-SIM + Nano-SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIM
Weight230 g (8.11 oz)188 g (6.63 oz)
Display
ProtectionCorning Gorilla Glass 6Corning Gorilla Glass 6
Resolution1080 x 2400 pixels, 20:9 ratio (~395 ppi density)1440 x 3200 pixels, 20:9 ratio (~525 ppi density)
Size6.67 inches, 107.4 cm2 (~84.2% screen-to-body ratio)6.7 inches, 108.0 cm2 (~90.5% screen-to-body ratio)
TypeSuper AMOLED, 90Hz, HDR10+, 700 nits (HBM)Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak)
Platform
CPUOcta-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55)Octa-core (2x2.73 GHz Mongoose M5 & 2x2.50 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55) - GlobalOcta-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55) - USA
ChipsetQualcomm SM8250 Snapdragon 865 5G (7 nm+)Exynos 990 (7 nm+) - GlobalQualcomm SM8250 Snapdragon 865 5G (7 nm+) - USA
GPUAdreno 650Mali-G77 MP11 - GlobalAdreno 650 - USA
OSAndroid 10, upgradable to Android 12, ZenUIAndroid 10, upgradable to Android 13, One UI 5.1
Memory
Card slotmicroSDXC (dedicated slot)microSDXC (uses shared SIM slot)
Internal128GB 6GB RAM, 128GB 8GB RAM128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
 UFS 3.1-
Main Camera
FeaturesDual-LED flash, HDR, auto panorama (motorized rotation)LED flash, auto-HDR, panorama
Single5 MP, f/2.6, AF-
Triple64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.4, 80mm (telephoto), PDAF, 3x optical zoom 12 MP, f/2.2, 113˚, 17mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video 0.3 MP, TOF 3D, f/1.0, (depth)
Video8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS
Selfie camera
FeaturesDual-LED flash, HDR, auto panorama (motorized rotation)HDR
SingleVGA10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF
TripleMotorized flip-up main camera module-
Video8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, 720p@480fps; gyro-EIS, HDR4K@30/60fps, 1080p@30fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 24-bit/192kHz audio-
Comms
Bluetooth5.0, A2DP, LE, aptX Adaptive5.0, A2DP, LE
NFCYesYes
PositioningGPS (L1+L5), GLONASS (L1), BDS (B1+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)GPS, GLONASS, BDS, GALILEO
RadioNoFM radio (Snapdragon model only; market/operator dependent)
USBUSB Type-CUSB Type-C 3.2, 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, ultrasonic), accelerometer, gyro, proximity, compass, barometer
Battery
Charging30W wired, PD3.0, 60% in 34 min, 100% in 93 min Reverse wired25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless
Stand-byUp to 450 h (2G) / Up to 430 h (3G)-
Talk timeUp to 14 h 10 min (2G) / Up to 7 h 10 min (3G)-
TypeLi-Po 5000 mAhLi-Ion 4500 mAh
Misc
ColorsAurora Black, Pastel WhiteCosmic Black, Cosmic Grey, Cloud Blue, Cloud White, Aura Red, Aura Blue
ModelsZS670KS, ASUS_I002D, I002DSM-G986, SM-G986F, SM-G986F/DS, SM-G986U, SM-G986U1, SM-G9860, SM-G986B/DS, SM-G986N, SM-G986B, SM-G986W, SCG02
PriceAbout 910 EUR$ 174.17 / C$ 684.99 / € 299.97
SAR1.03 W/kg (head)     1.28 W/kg (body)     1.08 W/kg (head)     1.02 W/kg (body)
SAR EU0.52 W/kg (head)     1.09 W/kg (head)     1.57 W/kg (body)
Tests
Audio quality Noise -82.1dB / Crosstalk -80.7dB-
Battery lifeEndurance rating 42h-
Camera Photo / Video-
Display Contrast ratio: Infinite (nominal) / 2.422:1 (sunlight)-
Loudspeaker Voice 66dB / Noise 63dB / Ring 76dB-

Asus Zenfone 7

  • Unique flip camera design
  • Faster 30W wired charging
  • Excellent battery endurance (42h)
  • Clean software experience

  • No wireless charging
  • Less established brand recognition

Samsung Galaxy S20+ 5G

  • Wireless and reverse wireless charging
  • Vibrant and color-accurate display
  • Established brand and support
  • Snapdragon variant offers excellent performance (USA)

  • Exynos variant can suffer from thermal throttling (Global)
  • Slower 25W wired charging

Display Comparison

Both phones utilize 7nm+ fabrication, but differ significantly in display approach. While specific nit brightness isn't provided for the Zenfone 7, its 'infinite' contrast ratio suggests a strong OLED panel. The S20+ 5G, lacking LTPO technology, doesn't have the variable refresh rate benefits of newer displays, but its color accuracy is likely superior due to Samsung’s display expertise. The Zenfone 7’s smaller form factor may appeal to those preferring a more manageable device size, though the S20+ 5G’s larger screen offers a more immersive viewing experience.

Camera Comparison

The Zenfone 7’s standout feature is its flip camera module, housing both main sensors. This eliminates the need for a notch or hole-punch, maximizing screen real estate. While sensor sizes aren’t specified, the flip mechanism allows for high-quality selfies using the primary sensor. The S20+ 5G relies on a traditional front-facing camera. Both phones offer versatile camera systems, but the Zenfone 7’s unique approach provides a distinct advantage in selfie quality and design. The S20+ 5G likely benefits from Samsung’s advanced image processing algorithms, potentially delivering more vibrant and shareable photos, but the Zenfone 7 offers a more flexible shooting experience.

Performance

The chipset is a key differentiator. The USA variant of the S20+ 5G and the Zenfone 7 both feature the Qualcomm Snapdragon 865 5G (7nm+), meaning comparable CPU performance – both utilize the Cortex-A77 architecture. However, the global S20+ 5G uses the Exynos 990, which, while also 7nm+, employs Samsung’s Mongoose M5 cores. Benchmarks at the time of release indicated the Snapdragon 865 generally outperformed the Exynos 990, particularly in sustained workloads due to better thermal management. The Zenfone 7’s cooling solution, while not detailed, appears sufficient to maintain performance, while the Exynos S20+ 5G was known to throttle under heavy load. Both phones feature ample RAM, ensuring smooth multitasking.

Battery Life

The Zenfone 7 boasts an endurance rating of 42 hours, suggesting excellent battery life. Its 30W wired charging with PD3.0 is faster than the S20+ 5G’s 25W charging. The Zenfone 7 reaches 60% charge in 34 minutes and 100% in 93 minutes, while the S20+ 5G’s charging times are slower. The S20+ 5G adds 15W wireless charging and 4.5W reverse wireless charging, features absent on the Zenfone 7. While the S20+ 5G’s battery capacity isn’t specified, the Zenfone 7’s efficient chipset and optimized software contribute to its impressive endurance.

Buying Guide

Buy the Asus Zenfone 7 if you need a truly unique camera experience with the flip mechanism, prioritize a clean software experience, and want a phone that stands out from the crowd. Buy the Samsung Galaxy S20+ 5G if you prefer a more polished and feature-rich ecosystem, value wireless charging, and require the broader support network of a major brand. The S20+ is also the better choice for users in regions receiving the Exynos 990 chipset if thermal throttling is a concern.

Frequently Asked Questions

❓ Does the Exynos 990 in the global S20+ 5G overheat during prolonged gaming sessions?
Yes, the Exynos 990 variant of the S20+ 5G was known to exhibit thermal throttling under sustained load, particularly during demanding games. This can lead to reduced performance and frame rate drops. The Snapdragon 865 variant does not suffer from this issue to the same degree.
❓ Is the flip camera mechanism on the Zenfone 7 durable and reliable?
Asus claims the flip camera mechanism is tested for durability and rated for hundreds of thousands of flips. While long-term reliability is always a concern with moving parts, user reports suggest the mechanism is generally robust and has held up well over time. However, it's still a potential point of failure not present in traditional camera designs.
❓ Does the Zenfone 7 support 90fps gameplay in popular titles like PUBG Mobile?
The Zenfone 7, powered by the Snapdragon 865, is capable of running PUBG Mobile at high frame rates. While achieving a consistent 90fps depends on the game settings and device temperature, it can generally maintain 60fps with smooth performance. The S20+ 5G (Snapdragon) will offer similar performance.
❓ What are the benefits of the Zenfone 7's clean software experience compared to Samsung's One UI?
The Zenfone 7 runs a near-stock version of Android, offering a cleaner and more streamlined user interface. This translates to less bloatware, faster updates, and a more customizable experience. Samsung's One UI, while feature-rich, can feel cluttered and includes pre-installed apps that some users may not want.