BeastCompare

Galaxy Z Fold8 Ultra vs Vivo X300s: Which One Should You Buy?

Galaxy Z Fold8 Ultra edges ahead with a BeastScore of 94.2/100 — but the right choice depends on what matters to you.

Head-to-head
Comparing 2 devicesSwipe ⇄
Samsung · 2026

Galaxy Z Fold8 Ultra

Galaxy Z Fold8 Ultra
94/ 100
Launch price$1,799
Vivo · 2026

Vivo X300s

Vivo X300s
93/ 100
Launch price$799
Head-to-head

Galaxy Z Fold8 Ultra wins overall; Vivo X300s takes 5 of 8 categories

Here's exactly where each phone is stronger.

Galaxy Z Fold8 Ultra
Galaxy Z Fold8 Ultra
2 wins
Vivo X300s
Vivo X300s
5 wins
At a glance

Bigger shape = better phone.

SpeedCameraSelfieBatteryDisplayConnectivitySecurityValue
Galaxy Z Fold8 UltraVivo X300s
Category winners

Scores out of 100. How we score

  • SpeedGalaxy Z Fold8 Ultra
    98
    90
  • CameraVivo X300s
    96
    100
  • VideoNot enough data
  • SelfieVivo X300s
    40
    100
  • BatteryVivo X300s
    89
    98
  • DisplayGalaxy Z Fold8 Ultra
    98
    96
  • ConnectivityTie
    100
    100
  • SecurityVivo X300s
    14
    100
  • ValueVivo X300s
    56
    68
Key differences
  • Vivo X300s has the bigger battery7,100 mAh vs 5,000 mAh
  • Vivo X300s charges faster90W vs 45W
  • Vivo X300s has a smoother screen144 Hz vs 120 Hz
  • Galaxy Z Fold8 Ultra has the bigger screen8" vs 6.78"
  • Galaxy Z Fold8 Ultra is lighter215 g vs 218 g
  • Vivo X300s launched cheaper$799 vs $1,799
  • Vivo X300s has a sharper selfie camera50 MP vs 10 MP
  • Galaxy Z Fold8 Ultra has more RAM16 GB vs 12 GB
  • Galaxy Z Fold8 Ultra has the faster chipQualcomm Snapdragon 8 Elite Gen 5 (3 nm) vs Dimensity 9500
  • Vivo X300s is better protected from water and dustIP69 vs IP48
See all specs ↓

Why buy each phone

Swipe ⇄
Reasons to buy Galaxy Z Fold8 Ultra
  • ✓3 g lighter (215 g vs 218 g), easier to hold
  • ✓200 MP main camera
  • ✓8" display at 120 Hz
Reasons to buy Vivo X300s
  • ✓$1,000 cheaper at launch ($799 vs $1,799)
  • ✓Bigger 7,100 mAh battery (+2,100 mAh)
  • ✓200 MP main camera

Full specifications

Swipe ⇄
SpecificationGalaxy Z Fold8 UltraVivo X300s
1. Display & Screen🏆 Galaxy Z Fold8 Ultra Wins Display
Screen typeFoldable Dynamic LTPO AMOLED 2X, 120Hz, HDR10+, 3000 nits (peak)LTPO AMOLED
Screen Size8"6.78"
Resolution & Density2256 x 2504 pixels (~422 ppi) (422 ppi)2800x1260 (460 ppi)
Refresh Rate120 Hz adaptive144 Hz adaptive
Brightness1432 nits (measured)4,500 nits peak
Screen ProtectionCorning Gorilla Glass Victus Ceramic 3 / Flex TitaniumNot listed
2. Platform & Performance🏆 Galaxy Z Fold8 Ultra Wins Performance
Chipset / ProcessorQualcomm Snapdragon 8 Elite Gen 5 (3 nm) Dimensity 9500 (3nm)
CPU CoresNot listedNot listed
GPU GraphicsNot listedMali G1-Ultra
Operating SystemAndroid 17, One UI 9 (7 major OS updates) 17Android 16
3. Memory & Storage
RAM Memory16 GB LPDDR12 GB LPDDR
Internal Storage256GB / 512GB / 1TB256GB / 512GB / 1024GB
Storage SpeedUFS 4.xNot listed
Card SlotNoNo
4. Main Camera Optics🏆 Vivo X300s Wins Camera
Primary Camera200 MP, f/1.7, 24mm (wide), 1/1.3", OIS, multi-directional PDAF, OIS200 MP, f/1.68, OIS, Samsung HPBr 1/1.4-inch
Telephoto Zoom10 MP (3x optical zoom), f/2.4, 67mm, OIS50 MP (3.7x optical zoom), f/2.6, OIS
Ultrawide Camera50 MP, f/1.9, 120˚ (ultrawide)50 MP, f/2
LiDAR / DepthNoneNone
5. Video
Main Camera Video
8K@30fps4K@30/60/120fps1080p@240fps10-bit HDRHDR10+gyro-EISOIS
Not listed
Front Video
4K@30/60fps1080p@60fpsgyro-EIS
Not listed
6. Selfie Camera
Selfie Lens10 MP, f/2.2, 18mm (ultrawide)50 MP, f/2
7. Body & Dimensions🏆 Galaxy Z Fold8 Ultra Lightest Chassis
DimensionsUnfolded: 158.4 x 143.2 x 4.1 mm, Folded: 158.4 x 72.8 x 8.9 mm162.5 x 76.3 x 8.2 mm
Weight215 g218 g
Build MaterialsGlass front (Gorilla Glass Victus Ceramic 3) folded, plastic front unfolded, glass back, aluminum frameNot listed
SIM TypeNano-SIM + eSIM + eSIM (dual active)Not listed
Water ResistanceIP48 dust and water resistantIP69
8. Battery & Charging🏆 Vivo X300s Wins Battery
Battery Capacity5,000 mAh7,100 mAh
Wired Fast Charging45W wired fast charging90W wired fast charging
Wireless Charging20W wireless charging40W wireless charging
Reverse ChargingNot listedNot listed
9. Sound & Audio
LoudspeakerYes, with stereo speakersNot listed
3.5mm Headphone JackNoNo
10. Connectivity
Wi-Fi StandardWi-Fi 7 (802.11be, tri-band, Wi-Fi Direct)Wi-Fi 7
Bluetooth6.0, A2DP, LE, aptX HD6.0
USB Port & SpeedUSB Type-C 3.2, OTGUSB-C 3.2
NFCYes (Samsung Pay Visa, MasterCard certified)Yes (contactless payment)
11. Sensors & Security
SensorsNot listedNot listed
Satellite FeaturesNot listedNot listed
12. Colors & Overview
ColorsNot listedNot listed
Launch Price$1,799$799
Our verdict

Galaxy Z Fold8 Ultra wins — BeastScore 94.2/100

The Galaxy Z Fold8 Ultra is the better pick for most people thanks to its bigger screen (8" vs 6.78") and lighter body (215 g vs 218 g). The Vivo X300s is worth a look if you prefer its bigger battery (7,100 mAh vs 5,000 mAh).

Buy Galaxy Z Fold8 Ultra if you want

Larger display: 8" vs 6.78" · More RAM: 16 GB vs 12 GB

Buy Vivo X300s if you want

Larger battery: 7,100 mAh vs 5,000 mAh · Faster wired charging: 90W vs 45W

Common questions

Which is better: Galaxy Z Fold8 Ultra or Vivo X300s?

The Galaxy Z Fold8 Ultra is the better pick for most people thanks to its bigger screen (8" vs 6.78") and lighter body (215 g vs 218 g). The Vivo X300s is worth a look if you prefer its bigger battery (7,100 mAh vs 5,000 mAh). BeastScore: Galaxy Z Fold8 Ultra 94.2/100, Vivo X300s 93.1/100.

What are the main battery and display differences between Galaxy Z Fold8 Ultra and Vivo X300s?

Galaxy Z Fold8 Ultra has a 8-inch display and 5000 mAh battery. Vivo X300s has a 6.78-inch display and 7100 mAh battery.

How do Galaxy Z Fold8 Ultra and Vivo X300s compare for speed?

Galaxy Z Fold8 Ultra scores 98/100 for performance; Vivo X300s scores 90/100.

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