vivo X300 vs Samsung Galaxy Z Fold8 Ultra: Specs, Prices, and Which Form Fits

The vivo X300 is a compact, conventional phone built around a 6.31-inch display and a ZEISS-branded triple rear-camera system. The Samsung Galaxy Z Fold8 Ultra is a book-style foldable with a 6.5-inch cover screen and an 8-inch inner display. The key choice is whether you want a smaller camera-focused handset or a foldable screen for work and media—not which phone has the bigger headline specification.

At a glance: different phones for different jobs

Specifications can vary by market, configuration, carrier and retailer. The vivo Global parameter page provides the X300 figures; Samsung’s product announcement and specifications provide the Fold8 Ultra figures.

#	Preview	Product	Price
1		vivo X300 Ultra 5G Unlocked Smartphone | China Version | 16GB+512GB | Snapdragon 8 Elite Gen 5 |...	$1,649.00	Buy on Amazon

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Screen size and portability

Choose the X300 for a single compact display

The X300’s 6.31-inch flat display keeps the phone narrow and lighter at 190g. Its listed dimensions are 150.57 × 71.92 × 7.95mm, making it the more compact option by its published measurements. The 2640 × 1216 AMOLED panel supports an adaptive 1–120Hz refresh rate. vivo advertises a 4500-nit local peak brightness; that is a manufacturer claim, not an independently verified everyday brightness result. vivo’s X300 specifications

Choose the Fold8 Ultra for a larger workspace

Folded, Samsung’s phone has a 6.5-inch cover display. Unfold it for an 8-inch inner screen, with more room for reading, multitasking and media. Both panels are listed with adaptive 1–120Hz refresh rates. At 215g, the Fold8 Ultra is 25g heavier than the X300, and its folded dimensions are 72.8 × 158.4 × 8.9mm. Those numbers describe different uses: the Fold8 Ultra gives you a much larger open display, while the X300 stays a conventional handset.

#1 Best Overall

vivo X300 Ultra 5G Unlocked Smartphone | China Version | 16GB+512GB | Snapdragon 8 Elite Gen 5 | 200MP 35mm Z EISS Main Camera | 6.82" 144Hz 2K AMOLED Display | 6600mAh Battery+100W Fast Charge

• Full GOOG Service: Same User experience as the local mobile version. It's manufactured by vivo China Headquarter Factory. We will help you to install full set of GOOG APPs. The frequencies supported cover main network bands. The package contains compatible charger with local standard. Needless to worry about the GOOG Service, language, charging and network compatibility. Since this is a China Version mobile phone, please note some contents might still be Chinese and may not be changed.
• PROFESSIONAL V-SLR CAMERA SYSTEM — 3+2 Z EISS Master Lens Array with dual 200MP sensors (1/1.12″ S ONY LYTIA 901 main + 200MP 85mm gimbal-stabilized telephoto) and a 50MP ultrawide. Covering 14mm to 400mm full focal range with CIPA 7.0-level stabilization. This is the original Chinese version – fully unlocked and ready for global use. Every shot delivers Z EISS natural color science.
• IMMERSIVE 2K DISPLAY — 6.82-inch 2K Z EISS Master Color AMOLED flat display with 1-144Hz LTPO adaptive refresh rate. Peak brightness 4500nits for outdoor visibility, supports Dolby Vision, HDR 10+, and Netflix HDR. 2160Hz PWM dimming + full-range DC dimming for eye protection – perfect for gaming and streaming.
• FLAGSHIP PERFORMANCE — Snapdragon 8 Elite Gen 5 (TSMC 3nm, up to 4.6GHz). Ice Vein Fluid VC cooling system. Runs Funtouch OS (Chinese version) with full GOOG Play Services pre-installed, so you get a clean Android 16 experience with all US apps working seamlessly.
• ALL-DAY BATTERY — 6600mAh battery. 100W wired FlashCharge (0-100% in ~30 min) + 50W wireless FlashCharge. Includes C-to-C charger. IP68/IP69 dust/water resistance. The Chinese version retains the original high-capacity battery and fast charging protocol – no regional downgrade.

$1,649.00

Buy on Amazon

Camera hardware: compare the systems, not just megapixels

vivo X300

vivo describes a 200MP ZEISS main camera, a 50MP ZEISS telephoto camera and a 50MP ZEISS ultrawide. The front camera is listed at 50MP with autofocus. vivo also promotes 4K 60fps portrait video and offers a Telephoto Extender Kit as an optional imaging accessory; check local compatibility and availability before buying. These are manufacturer specifications and claims, not comparative test results. vivo’s X300 overview

Samsung Galaxy Z Fold8 Ultra

Samsung highlights a 200MP main camera with HDR capability in 200MP mode and a new 50MP ultrawide camera. The cited launch materials do not provide a complete rear-camera array for comparison, so a telephoto specification should not be inferred from them. Samsung’s camera details and advertised capabilities do not establish that its photos outperform the X300’s.

A 200MP label alone does not show how well a camera handles motion, low light, skin tones or zoom. No controlled head-to-head camera testing is established here, so choose based on the hardware you need and consult independent sample testing if image quality is the deciding factor.

Performance, software and cooling

The X300 uses MediaTek’s Dimensity 9500 and is listed with Android 16 and OriginOS 6 on vivo’s Global parameter page. The Fold8 Ultra uses Qualcomm’s Snapdragon 8 Elite Gen 5 Mobile Platform for Galaxy. Samsung’s launch page also describes an expanded graphite cooling structure.

These platform names do not establish which phone is faster in everyday use or sustained workloads. No controlled performance test is available for this comparison, and a like-for-like software-support promise is not established by the cited specifications. Check the support terms for the exact model and region before purchase.

Battery capacity and charging

vivo lists a typical 6040mAh battery for overseas markets except Europe, with a 5360mAh version specified for Austria and Hungary. The X300 supports 90W wired FlashCharge and 40W wireless FlashCharge. Samsung lists a 5,000mAh battery and 45W fast charging for the Fold8 Ultra.

Battery capacity and charging wattage are not measured runtime. They do not account for display size, usage, network conditions or software, so these specifications alone cannot establish which phone lasts longer on a charge. Confirm the battery version and charging accessories offered in your market.

Price difference: the available figures are not a direct comparison

The published prices below use different markets and price bases. They are not a like-for-like price gap, and launch prices are not verified current offers.

The India X300 store listing showed the 12GB+256GB option with a “Buy now” action and the two 512GB listings as unavailable when retrieved. Treat availability as time-sensitive. vivo India store listings

For Samsung, use a local listing to confirm current price, taxes and stock. The official August 6, 2026 release said rollout began August 7 and would expand across 106 markets, with colors and options varying by market, carrier and retailer. That release does not guarantee availability in a particular location. Samsung’s rollout announcement

To calculate a meaningful difference, compare current prices in the same country, on the same date, for the same storage capacity and seller type, using the same tax basis. The available India vivo prices and US, UK and Australian Samsung launch prices do not meet those conditions. TechRadar also reports that Samsung’s 256GB Fold8 Ultra launch price was US$200, £200 or AU$300 above the standard Fold8 in the respective markets; that is a Samsung-to-Samsung comparison, not a price gap against the vivo X300. TechRadar’s Samsung launch-price comparison

Quick Recap

Bestseller No. 1

vivo X300 Ultra 5G Unlocked Smartphone | China Version | 16GB+512GB | Snapdragon 8 Elite Gen 5 | 200MP 35mm Z EISS Main Camera | 6.82" 144Hz 2K AMOLED Display | 6600mAh Battery+100W Fast Charge

$1,649.00

Which one fits your priorities?

• Pick the vivo X300 if you want a lighter conventional phone, a single flat display, and a specified telephoto camera alongside main and ultrawide cameras.
• Pick the Galaxy Z Fold8 Ultra if you will regularly use an 8-inch inner screen for tasks that benefit from a larger workspace and are comfortable carrying a heavier foldable.
• Compare local listings before deciding on value because the cited prices come from different markets, dates and price bases.
• Wait for independent testing if your decision depends on which phone takes better photos, runs faster, lasts longer or holds up better in daily use; the specifications alone do not settle those questions.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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