Surface Duo vs. Galaxy S10: A Tale of Two Approaches to Mobile

Released years apart, the Microsoft Surface Duo and Samsung Galaxy S10 represent fundamentally different philosophies in smartphone design. The S10, a refined compact flagship, aimed for all-around excellence. The Surface Duo, however, bet on a unique dual-screen form factor to redefine mobile productivity. This comparison examines which device holds up better in today's market, considering price drops and evolving user needs.
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🏆 Quick Verdict

For the average user seeking a reliable, well-rounded smartphone, the Samsung Galaxy S10 remains a compelling choice, particularly at its current price point. While the Surface Duo offers a novel experience, its aging chipset and limited software support hinder its overall usability compared to the S10’s mature ecosystem.

PHONES
Phone Names Microsoft Surface Duo Samsung Galaxy S10
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - Global, USA
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 19 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 661, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - Global
SpeedHSPA 42.2/5.76 Mbps, LTE Cat18 1200/150 MbpsHSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/150 Mbps
TechnologyGSM / HSPA / LTEGSM / CDMA / HSPA / EVDO / LTE
 -1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 66, 71 - USA
Launch
Announced2020, August 12. Released 2020, September 102019, February 20. Released 2019, March 08
StatusDiscontinuedDiscontinued
Body
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5)Glass front (Gorilla Glass 6), glass back (Gorilla Glass 5), aluminum frame
DimensionsUnfolded: 186.9 x 145.2 x 4.8 mm Folded: 145.2 x 93.3 x 9.9 mm149.9 x 70.4 x 7.8 mm (5.90 x 2.77 x 0.31 in)
SIMNano-SIM + eSIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight250 g (8.82 oz)157 g (5.54 oz)
 Stylus supportIP68 dust/water resistant (up to 1.5m for 30 min)
Display
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass 6
Resolution1800 x 2700 pixels, 3:2 ratio (~401 ppi density)1440 x 3040 pixels, 19:9 ratio (~550 ppi density)
Size8.1 inches, 195.4 cm2 (~144.2% screen-to-body ratio)6.1 inches, 93.2 cm2 (~88.3% screen-to-body ratio)
TypeAMOLEDDynamic AMOLED, HDR10+
 Folded position display: 5.6 inches, AMOLED, 1350 x 1800 pixels (4:3)Always-on display
Platform
CPUOcta-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)Octa-core (2x2.73 GHz Mongoose M4 & 2x2.31 GHz Cortex-A75 & 4x1.95 GHz Cortex-A55) - EMEA/LATAMOcta-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485) - USA/China
ChipsetQualcomm SM8150 Snapdragon 855 (7 nm)Exynos 9820 (8 nm) - EMEA/LATAMQualcomm SM8150 Snapdragon 855 (7 nm) - USA/China
GPUAdreno 640Mali-G76 MP12 - EMEA/LATAMAdreno 640 - USA/China
OSAndroid 10, upgradable to Android 12Android 9.0 (Pie), upgradable to Android 12, One UI 4.1
Memory
Card slotNomicroSDXC (uses shared SIM slot) - dual SIM model only
Internal128GB 6GB RAM, 256GB 6GB RAM128GB 6GB RAM, 128GB 8GB RAM, 512GB 8GB RAM
 UFS 3.0UFS 2.1
Main Camera
FeaturesHDR, panoramaLED flash, auto-HDR, panorama
Single11 MP, f/2.0, 23mm (wide), 1.0µm, PDAF-
Triple-12 MP, f/1.5-2.4, 26mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS 12 MP, f/2.4, 52mm (telephoto), 1/3.6", 1.0µm, AF, OIS, 2x optical zoom 16 MP, f/2.2, 12mm (ultrawide), 1/3.1", 1.0µm, Super Steady video
Video4K@30/60fps, 1080p@30/60/120/240fps, gyro-EIS, HDR4K@60fps (no EIS), 4K@30fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS & OIS
Selfie camera
FeaturesHDR, panoramaHDR
SingleUses main camera10 MP, f/1.9, 26mm (wide), 1/3", 1.22µm, dual pixel PDAF
Video4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR4K@30/60fps, 1080p@30fps
Sound
3.5mm jack NoYes
35mm jackNoYes
Loudspeaker YesYes, with stereo speakers
 -32-bit/384kHz audio Tuned by AKG
Comms
Bluetooth5.0, A2DP, LE, aptX Adaptive5.0, A2DP, LE, aptX
NFCNoYes
PositioningGPSGPS, GLONASS, BDS, GALILEO
RadioNoFM radio (USA & Canada only)
USBUSB Type-C 3.1USB Type-C 3.1, OTG, DisplayPort
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 (side-mounted), dual accelerometer, dual gyro, proximity, dual compassFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2
 -ANT+ Bixby natural language commands and dictation Samsung DeX (desktop experience support) Samsung Pay (Visa, MasterCard certified)
Battery
Charging18W wired15W wired, PD2.0 15W wireless (Qi) 4.5W reverse wireless
TypeLi-Po 3577 mAhLi-Ion 3400 mAh, non-removable
Misc
ColorsWhitePrism White, Prism Black, Prism Green, Prism Blue, Canary Yellow, Flamingo Pink, Cardinal Red, Smoke Blue
Models-SM-G973F, SM-G973U, SM-G973W, SM-G973U1, SM-G9730, SM-G973N, SM-G973X, SCV41, SM-G973C
PriceAbout 650 EURAbout 150 EUR
SAR-0.93 W/kg (head)     0.79 W/kg (body)
SAR EU-0.48 W/kg (head)     1.59 W/kg (body)
Tests
Audio quality- Noise -92.2dB / Crosstalk -92.7dB
Battery life- Endurance rating 79h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal), 4.498 (sunlight)
Loudspeaker- Voice 82dB / Noise 74dB / Ring 85dB
Performance- AnTuTu: 328366 (v7) GeekBench: 10174 (v4.4) GFXBench: 23fps (ES 3.1 onscreen)

Microsoft Surface Duo

  • Unique dual-screen multitasking experience
  • Portable and lightweight design
  • Good for reading and note-taking

  • Aging Snapdragon 855 chipset
  • Limited software support
  • Inferior camera system

Samsung Galaxy S10

  • Powerful Snapdragon 855 or Exynos 9820
  • Excellent battery life (79h endurance)
  • Versatile camera system

  • Smaller display compared to Surface Duo's combined screen area
  • No longer the latest flagship
  • Software updates are slowing down

Display Comparison

The Galaxy S10 boasts an 'Infinite' display with a contrast ratio of 4.498 in sunlight, indicating excellent outdoor visibility. While the Surface Duo features two separate 5.6-inch displays, the lack of a unified, high-contrast panel impacts media consumption. The S10’s Dynamic AMOLED panel delivers richer colors and deeper blacks, a significant advantage for visual experiences. The Surface Duo’s display, while functional, prioritizes screen real estate over image quality.

Camera Comparison

The Galaxy S10’s camera system, while details are limited in the provided data, was a flagship contender in its time, offering versatile photo and video capabilities. The Surface Duo’s camera specifications are not provided, but its focus is clearly not on photographic excellence. The S10’s superior image processing and likely larger sensor size (based on market positioning) deliver better image quality, especially in low-light conditions. The S10’s camera benefits from Samsung’s established computational photography expertise.

Performance

Both devices utilize the Qualcomm Snapdragon 855 in certain regions (USA/China for the S10). However, the EMEA/LATAM S10 variant uses the Exynos 9820. The Snapdragon 855, a 7nm process node, is a capable chip, but it's several generations behind current flagships. The Surface Duo’s Snapdragon 855, paired with a likely lower thermal budget due to its form factor, may experience more throttling under sustained load than the S10. The Exynos 9820, while competitive, generally trails the Snapdragon 855 in GPU performance. Both phones feature octa-core CPUs, but the architectural differences – Kryo 485 vs. Mongoose M4/Cortex-A75/A55 – impact real-world performance characteristics.

Battery Life

The Galaxy S10 achieves an impressive 79-hour endurance rating, suggesting excellent battery life for its 3100mAh capacity. The Surface Duo, with its dual displays and older chipset, likely struggles to match this endurance. The S10 supports 15W wired charging, PD2.0, 15W wireless charging, and even 4.5W reverse wireless charging – a feature absent on the Surface Duo’s 18W wired charging. The S10’s charging versatility and superior endurance provide a more convenient user experience.

Buying Guide

Buy the Microsoft Surface Duo if you prioritize multitasking and a large, portable screen for reading and note-taking, and are comfortable with a slightly older processor and potential software limitations. Buy the Samsung Galaxy S10 if you prefer a compact, powerful, and consistently updated flagship experience with a superior camera system and reliable performance for everyday tasks.

Frequently Asked Questions

❓ Does the Exynos 9820 chip in the Galaxy S10 EMEA/LATAM variant overheat during intensive tasks like gaming?
While the Exynos 9820 can generate more heat than the Snapdragon 855, the Galaxy S10’s thermal management system is generally effective at preventing significant overheating. Some throttling may occur during prolonged gaming sessions, but it’s unlikely to cause performance-crippling heat issues.
❓ Is the Surface Duo’s dual-screen setup truly beneficial for productivity, or is it more of a gimmick?
The Surface Duo’s dual-screen setup can be genuinely productive for specific workflows, such as reading documents side-by-side, taking notes while referencing other apps, or running two instances of the same app. However, the lack of optimized app support and the aging chipset limit its overall productivity potential.
❓ How does the Surface Duo handle app compatibility across its two screens?
App compatibility can be inconsistent. Some apps are optimized to span both screens, while others run in a single window. The Surface Duo’s software attempts to manage this, but it’s not always seamless, and some apps may not scale correctly.
❓ Given the age of both devices, what is the long-term software support outlook?
The Galaxy S10 has received several major Android updates and will continue to receive security patches for a limited time. The Surface Duo’s software support is more uncertain, with Microsoft’s commitment to long-term updates being less clear than Samsung’s.