Samsung Galaxy S20 vs. Sony Xperia 1 III: A Detailed Comparison of Flagship Android Phones

The Samsung Galaxy S20, released in 2020, represented Samsung’s continued dominance in the flagship space. The Sony Xperia 1 III, arriving in 2021, offered a different approach – a more niche, creator-focused experience. Now, with the S20’s price having dropped, a comparison is relevant for those seeking a high-end Android experience without the latest price tag. This analysis dives deep into the core differences between these two devices, focusing on performance, display quality, camera capabilities, and battery life.
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🏆 Quick Verdict

For the average user prioritizing value and a vibrant display, the Samsung Galaxy S20 offers a compelling package. However, the Sony Xperia 1 III edges ahead for power users and content creators thanks to its superior chipset, slightly better battery endurance, and faster charging capabilities.

PHONES
Phone Names Samsung Galaxy S20 Sony Xperia 1 III
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 661, 2, 3, 4, 5, 7, 8, 12, 13, 17, 19, 20, 25, 26, 28, 29, 32, 34, 38, 39, 40, 41, 46, 66 - Europe
5G bands-1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA/Sub6 - Europe
SpeedHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 MbpsHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / EVDO / LTEGSM / HSPA / LTE / 5G
 CDMA2000 1xEV-DO SA/NSA/Sub6/mmWave - USA (specific)
Launch
Announced2020, February 112021, April 14
StatusAvailable. Released 2020, March 06Available. Released 2021, August 25
Body
BuildGlass front (Gorilla Glass 6), glass back (Gorilla Glass 6), aluminum frameGlass front (Gorilla Glass Victus), glass back (Gorilla Glass 6), aluminum frame
Dimensions151.7 x 69.1 x 7.9 mm (5.97 x 2.72 x 0.31 in)165 x 71 x 8.2 mm (6.50 x 2.80 x 0.32 in)
SIM· Nano-SIM + eSIM· Nano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight163 g (5.75 oz)186 g / 187.1 g (mmWave) (6.56 oz)
 IP68 dust/water resistant (up to 1.5m for 30 min)IP65/IP68 dust/water resistant (up to 1.5m for 30 min)
Display
ProtectionCorning Gorilla Glass 6Corning Gorilla Glass Victus
Resolution1440 x 3200 pixels, 20:9 ratio (~563 ppi density)1644 x 3840 pixels, 21:9 ratio (~643 ppi density)
Size6.2 inches, 93.8 cm2 (~89.5% screen-to-body ratio)6.5 inches, 98.6 cm2 (~84.2% screen-to-body ratio)
TypeDynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak)OLED, 1B colors, 120Hz, HDR BT.2020
 Always-on display 120Hz@FHD/60Hz@QHD refresh rateRuns at 1096 x 2560 pixels except for select use cases
Platform
CPUOcta-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) - USAOcta-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
ChipsetExynos 990 (7 nm+) - GlobalQualcomm SM8250 Snapdragon 865 5G (7 nm+) - USAQualcomm SM8350 Snapdragon 888 5G (5 nm)
GPUMali-G77 MP11 - GlobalAdreno 650 - USAAdreno 660
OSAndroid 10, upgradable to Android 13, One UI 5Android 11, upgradable to Android 13
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (uses shared SIM slot)
Internal128GB 8GB RAM256GB 12GB RAM, 512GB 12GB RAM
 UFS 3.0UFS 3.X
Main Camera
FeaturesLED flash, auto-HDR, panoramaZeiss optics, Zeiss T* lens coating, color spectrum sensor, LED flash, panorama, HDR, eye tracking
Single-8 MP, f/2.0, 24mm (wide), 1/4", 1.12µm
Triple12 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 video12 MP, f/1.7, 24mm (wide), 1/1.7", 1.8µm, dual pixel PDAF, OIS 12 MP, f/2.3, 70mm (telephoto), f/2.8, 105mm (telephoto), 1/2.9", dual pixel PDAF, 3x/4.4x optical zoom, OIS 12 MP, f/2.2, 124˚, 16mm (ultrawide), 1/2.6", dual pixel PDAF 0.3 MP, TOF 3D, (depth)
Video8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS4K@24/25/30/60/120fps HDR, 1080p@30/60/120fps; 5-axis gyro-EIS, OIS
Selfie camera
FeaturesHDRHDR
Single10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF8 MP, f/2.0, 24mm (wide), 1/4.0", 1.12µm
Video4K@30/60fps, 1080p@30fps1080p@30fps, 5-axis gyro-EIS
Sound
3.5mm jack NoYes
35mm jackNoYes
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 32-bit/384kHz audio Tuned by AKG24-bit/192kHz audio Dynamic vibration system
Comms
Bluetooth5.0, A2DP, LE5.2, A2DP, LE, aptX HD, aptX Adaptive
NFCYesYes
PositioningGPS, GLONASS, BDS, GALILEOGPS, GLONASS, BDS, GALILEO, QZSS
RadioFM radio (Snapdragon model only; market/operator dependent)No
USBUSB Type-C 3.2, OTGUSB Type-C 3.1, OTG, video output
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, DLNA
Features
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometerFingerprint (side-mounted), accelerometer, gyro, proximity, barometer, compass
 Samsung DeX, Samsung Wireless DeX (desktop experience support) ANT+ Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified)Native Sony Alpha camera support
Battery
Charging25W wired, PD3.0 15W wireless (Qi) 4.5W reverse wireless30W wired, PD, 50% in 30 min Wireless Reverse wireless
TypeLi-Ion 4000 mAhLi-Po 4500 mAh
Misc
ColorsCosmic Grey, Cloud Blue, Cloud Pink, Cloud White, Aura RedFrosted Black, Frosted Gray, Frosted Purple
ModelsSM-G980, SM-G980F, SM-G980F/DSXQBC62/V, XQBC52V.UKCX, SO-51B, SOG03, A101SO, XQ-BC62, XQ-BC72, XQ-BC52, XQ-BC01, XQ-BC11, XQ-BC21, XQ-BC72
Price$ 252.72 / C$ 249.99 / £ 185.00 / € 185.00€ 505.26 / $ 903.43
SAR0.76 W/kg (head)     1.01 W/kg (body)-
SAR EU0.28 W/kg (head)     1.52 W/kg (body)-
Tests
Battery life Endurance rating 71h Endurance rating 82h
Camera Photo / Video Photo / Video
Display Contrast ratio: Infinite (nominal) Contrast ratio: Infinite (nominal)
Loudspeaker -23.9 LUFS (Very good) -26.5 LUFS (Good)
Performance AnTuTu: 525029 (v8) GeekBench: 12557 (v4.4), 2750 (v5.1) GFXBench: 44fps (ES 3.1 onscreen) AnTuTu: 607423 (v8) GeekBench: 3515 (v5.1) GFXBench: 54fps (ES 3.1 onscreen)

Samsung Galaxy S20

  • Brighter display for outdoor visibility
  • More affordable price point (post-launch)
  • Mature and feature-rich One UI software

  • Chipset performance varies by region (Exynos vs. Snapdragon)
  • Slightly lower battery endurance
  • Slower charging speeds

Sony Xperia 1 III

  • Superior chipset performance (Snapdragon 888)
  • Longer battery life and faster charging
  • Professional-grade camera features and manual controls

  • Lower peak display brightness
  • Higher price point
  • More minimalist software experience may not appeal to all

Display Comparison

The Samsung Galaxy S20 boasts a measured peak brightness of 814 nits, providing excellent visibility in direct sunlight. However, the Sony Xperia 1 III, despite a lower 620 nits peak, utilizes a 4K panel and a different color science that appeals to professionals. Both displays share an 'Infinite' contrast ratio, typical of OLED technology. The Xperia 1 III’s 4K resolution, while demanding on the battery, offers a noticeable increase in sharpness, particularly for media consumption. While neither manufacturer specifies PWM dimming rates, the S20’s display is known to be more prone to flicker, potentially impacting users sensitive to it.

Camera Comparison

Both phones offer versatile camera systems, but their approaches differ. While both are capable of photo and video, the Xperia 1 III focuses heavily on manual controls and professional features. The Xperia 1 III benefits from Sony’s image sensor expertise, though specific sensor sizes aren’t provided in the data. The Snapdragon 888’s ISP also provides advanced image processing capabilities. The S20’s camera system is more geared towards point-and-shoot simplicity, with Samsung’s signature vibrant image processing. The lack of detail regarding specific lens apertures and sensor sizes makes a direct comparison difficult, but the Xperia 1 III’s emphasis on manual control and professional features gives it an edge for serious photographers and videographers.

Performance

The core difference lies in the chipsets. The Galaxy S20 shipped with either the Exynos 990 (global) or the Snapdragon 865 (USA). The Xperia 1 III exclusively features the Snapdragon 888 5G, fabricated on a more efficient 5nm process compared to the S20’s 7nm+ Exynos/Snapdragon. The Xperia 1 III’s CPU configuration – Cortex-X1 prime core, three A78 performance cores, and four A55 efficiency cores – provides a performance advantage over the S20’s CPU, particularly in sustained workloads. The Snapdragon 888’s Adreno 660 GPU also outperforms the S20’s GPU, resulting in smoother gaming experiences. Thermal management is also a factor; the 5nm process of the Snapdragon 888 contributes to better thermal efficiency, reducing the likelihood of throttling during extended gaming sessions.

Battery Life

The Sony Xperia 1 III claims an endurance rating of 82 hours, slightly surpassing the Galaxy S20’s 71-hour rating. This difference is attributable to the more efficient Snapdragon 888 chipset and a more optimized software experience. The Xperia 1 III supports 30W wired charging with PD, capable of reaching 50% charge in 30 minutes, significantly faster than the S20’s 25W charging. Both phones offer wireless and reverse wireless charging, but the S20’s wireless charging is limited to 15W, while the Xperia 1 III’s wireless charging wattage is unspecified. The Xperia 1 III’s faster charging and slightly better endurance make it the more convenient option for users who frequently need to top up their battery.

Buying Guide

Buy the Samsung Galaxy S20 if you need a versatile, well-rounded flagship with a bright, color-accurate display and a mature software experience, and are comfortable with the potential for regional chipset variations. Buy the Sony Xperia 1 III if you prioritize raw performance, longer battery life, faster charging, and a more specialized feature set geared towards photography and videography, and prefer a more minimalist software approach.

Frequently Asked Questions

❓ Does the Exynos 990 in the Galaxy S20 overheat during prolonged gaming sessions?
The Exynos 990 is known to be less thermally efficient than the Snapdragon 865, and can experience throttling during extended gaming. While not a deal-breaker, users should expect some performance reduction after prolonged use, especially in demanding titles. The Snapdragon 865 variant, available in the US, handles heat more effectively.
❓ Is the 4K display on the Xperia 1 III a significant battery drain?
Yes, rendering at 4K resolution does consume more power than lower resolutions. However, Sony’s optimizations and the Snapdragon 888’s efficiency help mitigate the impact. Users can also adjust the display resolution to conserve battery life when 4K isn’t necessary.
❓ Does the Xperia 1 III support 90fps or 120fps gaming?
The Xperia 1 III supports high refresh rate gaming, but compatibility depends on the game. While not all titles support it, many popular games can be played at 60fps or higher, taking advantage of the Snapdragon 888’s powerful GPU.
❓ How does the camera processing differ between the S20 and Xperia 1 III?
Samsung’s camera processing tends to produce vibrant, saturated images, often prioritizing eye-catching results. Sony, on the other hand, aims for more natural and accurate color reproduction, giving users more flexibility in post-processing. The Xperia 1 III also offers extensive manual controls for those who prefer a hands-on approach.