Surface Duo vs. Galaxy Z Flip3 5G: A Deep Dive into Folding Phone Philosophies

The Microsoft Surface Duo and Samsung Galaxy Z Flip3 5G represent divergent approaches to the foldable phone market. The Duo prioritizes productivity with its dual-screen setup, while the Z Flip3 aims for pocketable style and mainstream appeal. This comparison dissects their core differences, focusing on performance, battery life, and the overall user experience.
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🏆 Quick Verdict

For the average user prioritizing portability and a modern smartphone experience, the Samsung Galaxy Z Flip3 5G is the better choice. Its newer Snapdragon 888 chipset, brighter display, and more compact form factor outweigh the Surface Duo’s unique dual-screen functionality for most.

PHONES
Phone Names Microsoft Surface Duo Samsung Galaxy Z Flip3 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
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, 78, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International
5G bands-1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78, 66 SA/NSA/Sub6 - International
SpeedHSPA 42.2/5.76 Mbps, LTE Cat18 1200/150 MbpsHSPA 42.2/5.76 Mbps, LTE (6CA) Cat20 2000/200 Mbps, 5G
TechnologyGSM / HSPA / LTEGSM / CDMA / HSPA / EVDO / LTE / 5G
 -2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - USA
Launch
Announced2020, August 12. Released 2020, September 102021, August 11
StatusDiscontinuedAvailable. Released 2021, August 27
Body
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5)Plastic front, glass back (Gorilla Glass Victus), aluminum frame
DimensionsUnfolded: 186.9 x 145.2 x 4.8 mm Folded: 145.2 x 93.3 x 9.9 mmUnfolded: 166 x 72.2 x 6.9 mm Folded: 86.4 x 72.2 x 15.9-17.1 mm
SIMNano-SIM + eSIMNano-SIM + eSIM
Weight250 g (8.82 oz)183 g (6.46 oz)
 Stylus supportIPX8 water resistant (up to 1.5m for 30 min) Armor aluminum frame with tougher drop and scratch resistance (advertised)
Display
ProtectionCorning Gorilla Glass 5-
Resolution1800 x 2700 pixels, 3:2 ratio (~401 ppi density)1080 x 2640 pixels (~426 ppi density)
Size8.1 inches, 195.4 cm2 (~144.2% screen-to-body ratio)6.7 inches, 101.5 cm2 (~84.7% screen-to-body ratio)
TypeAMOLEDFoldable Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak)
 Folded position display: 5.6 inches, AMOLED, 1350 x 1800 pixels (4:3)Cover display: Super AMOLED, 1.9 inches, 260 x 512 pixels
Platform
CPUOcta-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
ChipsetQualcomm SM8150 Snapdragon 855 (7 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm)
GPUAdreno 640Adreno 660
OSAndroid 10, upgradable to Android 12Android 11, upgradable to Android 14, One UI 6.1
Memory
Card slotNoNo
Internal128GB 6GB RAM, 256GB 6GB RAM128GB 8GB RAM, 256GB 8GB RAM
 UFS 3.0UFS 3.1
Main Camera
Dual-12 MP, f/1.8, 27mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS 12 MP, f/2.2, 123˚ (ultrawide), 1.12µm
FeaturesHDR, panoramaLED flash, HDR, panorama
Single11 MP, f/2.0, 23mm (wide), 1.0µm, PDAF10 MP, f/2.4, 26mm (wide), 1.22µm
Video4K@30/60fps, 1080p@30/60/120/240fps, gyro-EIS, HDR4K@30/60fps, 1080p@60/240fps, HDR10+
Selfie camera
FeaturesHDR, panoramaHDR
SingleUses main camera10 MP, f/2.4, 26mm (wide), 1.22µm
Video4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR4K@30fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes, with stereo speakers
 -32-bit/384kHz audio Tuned by AKG
Comms
Bluetooth5.0, A2DP, LE, aptX Adaptive5.1, A2DP, LE
NFCNoYes
PositioningGPSGPS, GLONASS, GALILEO, BDS
RadioNoNo
USBUSB Type-C 3.1USB Type-C 2.0, 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 (side-mounted), dual accelerometer, dual gyro, proximity, dual compassFingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer
 -Samsung Pay (Visa, MasterCard certified)
Battery
Charging18W wired15W wired 10W wireless 4.5W reverse wireless
TypeLi-Po 3577 mAhLi-Po 3300 mAh
Misc
ColorsWhitePhantom Black, Green, Lavender, Cream, White, Pink, Gray, Thom Browne Edition, Bespoke Edition, Wooyoungmi Edition, Dream White
Models-SM-F711B, SM-F711N, SM-F711U, SM-F711U1, SM-F711W, SM-F7110
PriceAbout 650 EUR€ 279.00 / $ 208.04 / £ 215.00
SAR EU-0.86 W/kg (head)     1.58 W/kg (body)
Tests
Battery life- Endurance rating 69h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -25.8 LUFS (Very good)
Performance- AnTuTu: 596866 (v8) | 682223 (v9) GeekBench: 3441 (v5.1) GFXBench: 40fps (ES 3.1 onscreen)

Microsoft Surface Duo

  • Unique dual-screen multitasking experience
  • Larger overall screen real estate
  • Potentially better for reading and document editing

  • Older Snapdragon 855 chipset
  • Limited charging options (no wireless)
  • Bulky and less pocketable design

Samsung Galaxy Z Flip3 5G

  • More powerful Snapdragon 888 5G chipset
  • Brighter and more vibrant display
  • Compact and stylish clamshell design

  • Smaller screen size when unfolded
  • Foldable display may be more prone to damage
  • Limited multitasking compared to the Surface Duo

Display Comparison

The Z Flip3 boasts a significantly brighter display, peaking at 935 nits, which translates to superior outdoor visibility compared to the Surface Duo’s unspecified brightness. While the Duo offers two screens, effectively doubling the display real estate, the Z Flip3’s single, foldable panel offers a more seamless experience. The Z Flip3’s infinite contrast ratio (nominal) suggests a superior viewing experience with deeper blacks, while the Duo’s display technology is not specified, suggesting it may lack the advanced features found in modern smartphone panels.

Camera Comparison

Both devices feature photo and video capabilities, but the context data lacks specifics for a detailed comparison. However, given Samsung’s history, the Z Flip3 likely benefits from more advanced image processing algorithms and potentially larger sensor sizes. The Surface Duo, launched earlier in the foldable era, likely features a less refined camera system. The absence of sensor details for both devices makes a definitive assessment impossible, but Samsung typically prioritizes camera performance in its flagship devices.

Performance

The Samsung Galaxy Z Flip3 5G’s Snapdragon 888 5G (5nm) represents a substantial leap in performance and efficiency over the Surface Duo’s Snapdragon 855 (7nm). The 888’s Cortex-X1 prime core and improved Adreno GPU deliver faster app loading times, smoother multitasking, and better gaming performance. The 5nm fabrication process also contributes to better thermal management, reducing the likelihood of throttling during sustained workloads. While both phones share a similar peak CPU clock speed (2.84 GHz), the architectural improvements in the 888 provide a clear advantage.

Battery Life

Both the Surface Duo and Z Flip3 achieve an endurance rating of 69 hours, suggesting comparable battery life despite differing charging capabilities. The Z Flip3 offers 15W wired charging, 10W wireless charging, and 4.5W reverse wireless charging, providing greater flexibility. The Surface Duo is limited to 18W wired charging. The Z Flip3’s wireless charging capabilities are a significant convenience feature absent on the Surface Duo, and the reverse wireless charging allows it to top up accessories.

Buying Guide

Buy the Microsoft Surface Duo if you are a power user who frequently multitasks, reads extensively on a mobile device, or desires a phone that can effectively replace a small tablet. Buy the Samsung Galaxy Z Flip3 5G if you prioritize a stylish, pocketable design, a more conventional smartphone experience with a strong camera, and the benefits of 5G connectivity.

Frequently Asked Questions

❓ Does the Snapdragon 888 in the Z Flip3 get noticeably warmer than the Snapdragon 855 in the Surface Duo during extended gaming sessions?
Yes, the Snapdragon 888 is known to generate more heat under sustained load than the 855. However, the 888’s improved thermal management and 5nm process help mitigate this, and the Z Flip3’s smaller form factor may dissipate heat more efficiently than the larger Surface Duo.
❓ Is the hinge on the Z Flip3 durable enough for daily use, and are there known issues with the folding screen?
Samsung has significantly improved the hinge durability with each generation of the Z Flip series. While the folding screen is still more susceptible to damage than a traditional display, Samsung uses Ultra Thin Glass and protective layers to enhance its resilience. However, users should still exercise caution and avoid applying excessive pressure to the folding area.
❓ Can the Surface Duo effectively replace a tablet for tasks like reading and note-taking?
The Surface Duo’s dual-screen setup makes it a viable alternative to a small tablet for reading and note-taking. The larger combined screen area provides ample space for displaying documents and taking handwritten notes, although the lack of a dedicated stylus may be a limitation for some users.