S8 Pro Ultra

Overview

The Roborock S8 Pro Ultra is a premium combined robot vacuum and mop, representing Roborock's most capable consumer product. It pairs a 6,000 Pa suction motor with a dual rubber brush roll and a sonic mopping system that scrubs floors at up to 3,000 vibrations per minute, delivering cleaning performance on hard floors that approaches dedicated hard-floor cleaners. The Ultra docking station automatically empties the dustbin, refills the water tank, and washes and dries the mop pads, making the entire clean cycle autonomous for extended periods.

The 180-minute runtime is one of the longest in the category, and the robot can handle large homes on a single charge without needing to dock for recharging mid-cycle. The PreciSense LiDAR navigation system builds precise floor maps and supports room-by-room scheduling, no-go zones, and selective carpet or hard-floor treatment.

Key Specifications

• Runtime: 180 minutes
• Suction: 6,000 Pa
• Mop vibration: 3,000 times per minute (sonic)
• Auto-functions: Empty, refill, mop wash, mop dry
• Price: $899 (US; UK approximately £799 to £899)

Use Cases

The S8 Pro Ultra is ideal for households with a mix of hard floor and carpet, particularly those where the mop function adds genuine cleaning value rather than merely damping a floor lightly. Open-plan UK homes with tiled kitchen and dining areas adjacent to carpeted living rooms benefit most from the robot's ability to automatically raise or retract the mop pad when transitioning between surface types.

The self-cleaning dock is a significant convenience feature for buyers who find robot vacuum maintenance a barrier to consistent use.

Buying Used

A secondary market exists through eBay and Roborock-authorised refurbishers. The Ultra dock contains more moving parts than a simple charging base, so used buyers should confirm that all auto-functions (empty, refill, wash, dry) are operational. Mop pad condition and brush roll wear are the most common maintenance items to inspect.

Alternatives to Consider

The iRobot Roomba j7+ offers superior obstacle avoidance without mopping capability. The Dyson 360 Vis Nav prioritises suction performance over mopping. Buyers who prioritise mopping over vacuuming should also compare the Ecovacs Deebot T20 Omni, which offers a similar all-in-one dock configuration.