While the Roborock Saros Z70 may not have completely met expectations, its robotic arm remains an impressive technological advancement. This feature is designed to identify small items in its vicinity, relocate them, and then continue with the cleaning routine. The Saros Z70’s robotic arm could very well be one of the standout innovations in the realm of robotic vacuums. But how does it function? And what are its limitations?
Let’s take a closer look at how to effectively utilize the robotic arm of the Roborock Saros Z70 and explore ways to enhance its performance.
Limitations of the Roborock Saros Z70’s Robotic Arm
Before setting this robotic vacuum to pick up items scattered on your floors, it’s essential to understand its limitations. Additionally, Roborock frequently updates the software for the Saros Z70, suggesting that improvements may be on the way. Currently, here are the limitations that will affect the robotic arm’s functionality:
- The robot struggles to identify items on carpets.
- Crossing thresholds while holding an object is not possible.
- The robotic arm operates at a slow speed.
- It is only designed to handle items weighing 300 grams or less.
- Some low-profile objects might escape detection.
- Reflective surfaces can confuse the robot’s sensors.
Some of these constraints are hardware-related and can’t be modified, while others may see enhancements through future software updates.
Tips for Optimizing the Saros Z70’s Robotic Arm

The arm on the Saros Z70 is inactive by default. You can activate it through the Robotic Arm Settings menu, which requires proximity to the robot and a few inputs. After activation, explore the menu for additional options that include:
- Follow-Up Cleaning
- Automatic Sorting
- Manual Sorting
- Remote Control for Pickup
Activating Follow-Up Cleaning and Automatic Sorting is advisable, and feel free to experiment with other settings. The Remote Control feature allows you to guide the robot toward an item before initiating the pickup process.
Much of the robotic arm’s operation is automated. When it detects an item suitable for pickup, it will do so autonomously and return it to a specified location. Nevertheless, there are strategies to enhance its effectiveness:
- Avoid leaving items on carpets. The Saros Z70 has trouble recognizing objects on carpeting and primarily picks up items from hard surfaces.
- Exercise patience. The robotic arm might grab and drop items multiple times. Its performance can take several attempts and a bit of time to succeed.
- Position the storage box wisely. Ensure three sides of the box are open to the robot, avoiding corners. If placing it near a wall, ensure adequate space for access.
- Focus on lighter items. Expect the best results with socks, small towels, paper, and slippers. Items heavier than 300 grams are beyond its handling capacity, so it’s wise to clear larger obstacles for optimal cleaning.
- Try manual operation for tricky pickups. Using the Remote Control to Pick Up feature, you can manually maneuver the arm to tackle difficult items. It’s also a great way to showcase the robot to your guests.