Introduction
This comparison brings together three high-end robots with multifunctional bases: the Roborock Saros 20 and the Roborock Saros Z70, alongside the Dreame X60 Pro Ultra. All three represent the most advanced in automated cleaning, although each brings different technical solutions that are worth analysing in detail.
The Roborock Saros 20 stands out for its suction power of 36,000 Pa and its StarSight 2.0 navigation system with dual camera. The Saros Z70 shares many features with its sibling, but incorporates the OmniGrip Arm robotic arm as a differentiating element. The Dreame X60 Pro Ultra opts for maximum power with 42,000 Pa and a HyperStream 2.0 dual brush system, as well as wider robotic extensions.
All are designed for demanding homes seeking complete automation of mopping and vacuuming, with bases that wash and dry the mops automatically.
Power and Suction
The power difference between these models is significant. The Dreame X60 Pro Ultra leads with 42,000 Pa of suction, followed by the Roborock Saros 20 with 36,000 Pa. The Saros Z70 offers 22,000 Pa, a figure that remains high but notably lower than its direct competitors.
Regarding the main brushing system, each manufacturer has opted for different solutions. The Saros 20 incorporates the DuoDivide anti-tangle system, designed specifically to push hair towards the centre and prevent it from wrapping. The Saros Z70 features a simple FreeFlow anti-tangle brush. The X60 Pro Ultra opts for a HyperStream 2.0 dual brush, with two elements anchored at one end that minimise hair tangles.
All three models lift the main brush during mopping and feature an extendable and liftable side brush. All incorporate anti-tangle technology in the side brush. The most notable difference here is that the X60 Pro Ultra specifies a 12 cm robotic extension for the side brush, which improves corner cleaning.
Only the Dreame X60 Pro Ultra includes a specific skirting board brush, a function that helps to better clean the vertical edges of walls.
Mopping
The mopping system varies in intensity and temperature between the three robots. The Dreame X60 Pro Ultra mops with two rotating mops at 280 RPM applying 15N of pressure, and does so with hot water at 40°C. The two Roborock models use rotating mops at 200 RPM: the Saros 20 applies 13N of pressure and the Saros Z70 does not specify exact pressure. Both mop with warm water, without reaching the 40°C of the Dreame.
Mop extension is present on all three, although the X60 Pro Ultra specifies an 18 cm robotic extension, superior to the 12 cm extension of the side brush. This allows the Dreame to better reach edges during mopping.
In mop lifting, both Roborock models reach between 12 and 22 mm, whilst the X60 Pro Ultra lifts up to 21.5 mm. Minimal differences that in practice work similarly to avoid wetting carpets.
All three detect dirt both on the mops and on the floor, adjusting cleaning as necessary. They also allow the mops to be removed at the base when you only want to vacuum.
Navigation System
The Roborock Saros 20 and the Saros Z70 share the StarSight 2.0 navigation system with dual front camera. The Dreame X60 Pro Ultra uses 360° retractable LiDAR with dual RGB camera. All three feature a front 3D laser sensor and LED for night vision.
Obstacle recognition capability marks important differences. The Saros 20 identifies 300 different objects, the X60 Pro Ultra reaches 320, whilst the Saros Z70 recognises 108. This directly influences the precision with which each robot avoids everyday objects.
The Saros 20 and the X60 Pro Ultra detect curtains, avoiding getting tangled with them. The Saros Z70 does not incorporate this specific function. All three recognise pets and allow remote camera access for home monitoring.
In intelligent cleaning systems, the Saros 20 integrates SmartPlan 3.0, the Saros Z70 SmartPlan 2.0 and the X60 Pro Ultra CleanGenius 3.0. All adjust routes and power according to the type of dirt detected.
Autonomy and Battery
All three robots feature 6,400 mAh batteries, guaranteeing sufficient autonomy for large homes. The Dreame X60 Pro Ultra incorporates Power Master technology that allows charging 24% of battery in just 5 minutes whilst washing the mops at the base. This function is especially useful in large homes where the robot needs intermediate recharges.
The Roborock models do not specify equivalent fast charging times, although the identical battery capacity suggests similar autonomy under normal usage conditions.
Intelligent Functions
Obstacle climbing capability is where important technical differences are evident. The Dreame X60 Pro Ultra can climb single steps of up to 50 mm and double steps of 100 mm. The Roborock Saros 20 reaches 45 mm on single steps and 88 mm on double. The Saros Z70 is limited to 30 mm on single and 40 mm on double.
This means that the X60 Pro Ultra and the Saros 20 overcome thick carpets, raised thresholds or small level changes between rooms more easily. The Saros Z70 may have more difficulty with high obstacles.
The Roborock Saros Z70 is the only one that incorporates the OmniGrip Arm robotic arm, capable of picking up small objects from the floor. This function is not present on either the Saros 20 or the X60 Pro Ultra.
All three models include their own voice assistant and compatibility with Alexa and Google Home.
Multifunctional Cleaning Base
All three bases perform auto-emptying of the dust container, automatic washing and drying of mops. Here the differences lie in temperatures and capacities.
The Saros 20 and the X60 Pro Ultra wash the mops with hot water at 100°C, whilst the Saros Z70 reaches 80°C. Drying is carried out with hot air at 55°C on both Roborock models and at 50°C on the Dreame.
Self-cleaning of the washing tray works with hot water at 100°C on the Saros 20 and the X60 Pro Ultra. The Saros Z70 specifies 2.0 self-cleaning without detailing exact temperature.
In capacities, the X60 Pro Ultra offers a 3.2-litre dust bag and 4.2-litre clean water tank. Both Roborock models have a 2.5-litre bag and 4-litre clean water tank. The dirty water tank is 3 litres on all three models. All include a detergent tank.
The Dreame X60 Pro Ultra has an optional kit for plumbing connection, which must be purchased separately. The Roborock models do not offer this option.
Dimensions
All three robots measure practically the same. The Saros 20 and the Saros Z70 are 353 mm in diameter and 79.8 mm in height. The X60 Pro Ultra measures 350 mm in diameter and 79.5 mm in height. Minimal differences that do not affect the ability to pass under furniture.
The bases of both Roborock models measure 381 mm wide, 488 mm high and 475 mm deep. The Dreame does not specify base measurements. It is worth considering the space needed to install any of these multifunctional stations.
The robot's dust container is 270 ml on the Saros 20 and 180 ml on the Saros Z70. The robot's water tank reaches 69 ml on both Roborock models. The X60 Pro Ultra does not specify internal tank capacities.
Real-world usage experience
For homes with pets, the Dreame X60 Pro Ultra and the Roborock Saros 20 offer clear advantages: greater suction power, brush systems designed specifically to avoid hair tangles and better capability to overcome obstacles such as pet beds or carpets.
In large homes, the X60 Pro Ultra's Power Master system proves practical by allowing fast charging during mop washing. All three models feature 6,400 mAh batteries, sufficient to complete extensive cleaning sessions.
The Dreame's mopping with hot water at 40°C provides better dissolution of grease and adhered dirt in kitchens. The Roborock models mop with warm water, effective but less powerful on difficult stains.
If there are small objects on the floor regularly, the Saros Z70's robotic arm can pick them up before cleaning. This function does not replace prior tidying, but helps with socks, light toys or papers.
Curtain detection on the Saros 20 and the X60 Pro Ultra avoids annoying tangles. The Saros Z70 requires more caution in areas with long curtains.
Conclusion: Which to choose?
Choose the Roborock Saros 20 if you're looking for a balance between high power (36,000 Pa), advanced obstacle recognition (300 objects) and good capability to overcome level changes (45 mm single, 88 mm double). Its DuoDivide system works especially well with pet hair. Ideal for large homes with animals and multiple floor types.
Choose the Roborock Saros Z70 if you value the OmniGrip Arm robotic arm as a differentiating function for picking up objects from the floor. Although its suction power is lower (22,000 Pa) and its obstacle climbing capability more limited (30 mm single, 40 mm double), it remains a very capable Roborock robot vacuum. Suitable for homes with regular floors and without thick carpets.
Choose the Dreame X60 Pro Ultra if you need maximum suction power (42,000 Pa) and the best obstacle climbing capability (50 mm single, 100 mm double). Its mopping with hot water at 40°C, 18 cm robotic mop extension and skirting board brush make it the most complete option for intensive mopping. Perfect for large homes with pets, thick carpets and the need for deep cleaning in kitchens.
