Samsung Galaxy Z Fold 8 Ultra offers incremental hardware and battery improvements over its predecessor

The Samsung Galaxy Z Fold 8 Ultra introduces several hardware refinements over the Z Fold 7, most notably the inclusion of silicon-carbon battery technology. This upgrade increases the battery capacity to 5,000 mAh, providing a modest improvement in daily endurance, though it remains behind several competitors. The device features a slightly thinner profile when unfolded, measuring 4.1 mm compared to the 4.2 mm of the previous model, and utilizes an upgraded hinge mechanism that facilitates easier opening. The display is protected by Gorilla Glass Armor, and the chassis incorporates a new titanium plate and alloy film for enhanced durability. While the device is IP48-rated for water resistance, it lacks dust resistance. The camera system retains a 200-megapixel main sensor and a 10-megapixel telephoto lens, but adds an upgraded 50-megapixel ultra-wide shooter. Software features include Android 17 with One UI 9, though the reviewer noted some early-stage bugs, such as intermittent Wi-Fi connectivity issues and audio playback interruptions during notifications. Despite the "Ultra" branding, the reviewer suggests the standard Z Fold 8 may be a more practical choice for many users due to its form factor.

Tech4K StaffVideo report

The Samsung Galaxy Z Fold 8 Ultra introduces several hardware refinements over the Z Fold 7, most notably the inclusion of silicon-carbon battery technology. This upgrade increases the battery capacity to 5,000 mAh, providing a modest improvement in daily endurance, though it remains behind several competitors. The device features a slightly thinner profile when unfolded, measuring 4.1 mm compared to the 4.2 mm of the previous model, and utilizes an upgraded hinge mechanism that facilitates easier opening. The display is protected by Gorilla Glass Armor, and the chassis incorporates a new titanium plate and alloy film for enhanced durability. While the device is IP48-rated for water resistance, it lacks dust resistance. The camera system retains a 200-megapixel main sensor and a 10-megapixel telephoto lens, but adds an upgraded 50-megapixel ultra-wide shooter. Software features include Android 17 with One UI 9, though the reviewer noted some early-stage bugs, such as intermittent Wi-Fi connectivity issues and audio playback interruptions during notifications. Despite the "Ultra" branding, the reviewer suggests the standard Z Fold 8 may be a more practical choice for many users due to its form factor.

The Z Fold 8 Ultra features a 5,000 mAh battery utilizing silicon-carbon technology for improved capacity. The device is slightly thinner than its predecessor, measuring 4.1 mm when fully unfolded.

Samsung has upgraded the hinge mechanism and added a titanium plate to improve overall structural durability. The camera system includes a new 50-megapixel ultra-wide sensor, while the main and telephoto sensors remain unchanged.

The device runs on Android 17 with One UI 9, which introduces new multitasking and customization options. The phone is IP48-rated for water resistance but does not offer official dust protection.

Chapter guide

Design and build qualityAn overview of the physical changes, including thickness, hinge mechanism, and materials.Fingerprint sensor and displayPerformance of the edge-mounted fingerprint sensor and the cover display.Software and multitaskingAn analysis of Android 17, One UI 9, and new multitasking capabilities.Performance and gamingEvaluation of the Snapdragon 8 Gen 5 processor and gaming performance.Battery and chargingTesting the new silicon-carbon battery and 45W wired charging support.Camera performanceA review of the 200MP main sensor, new 50MP ultra-wide, and video capabilities.

Worth noting

  • The reviewer is testing a pre-release version of the device, which may account for the reported software bugs and connectivity issues.
  • The reviewer received a discount code for the Samsung UK store, which may indicate a commercial relationship.

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