In this technical comparison between the Lefant M310 Ultra and the Xiaomi Robot Vacuum H40, we analyze the key features to help you choose.
Choosing between these two Robot Vacuum Cleaners models often comes down to your budget, with prices around $150 to $230 and ~$400.00.
| Specifications |
Lefant M310 Ultra |
Xiaomi Robot Vacuum H40 |
|---|---|---|
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| Launch | ||
| Version | August 2025 | August 2025 |
| Design & Build | ||
| Shape / Dimensions | Ultra-slim circular design; 28 x 28 x 7.9 cm (one of the smallest diameters on the market) | Round; 340 x 340 x 97 mm |
| Weight | Approximately 3.02 kg (6.66 lbs) to 3.35 kg. | Robot ~3.64 kg; Base Station ~8.7 kg |
| Dustbin capacity | 500 ml (Internal). | 350 mL (Internal); 4 L (Base Station bag, lasts up to 90 days). |
| Build material | Durable matte-finish ABS plastic. | High-durability ABS with a glossy white finish. |
| Cleaning & Performance | ||
| Suction power (Pa) | 6,000 Pa (Industrial-grade "HyperSuction"). | 10,000 Pa (Hurricane-style fan blower). |
| Cleaning modes | 3-in-1 (Sweep, Vacuum, Mop); specific modes include Auto, Spot, Edge, and Scheduled. | Silent, Standard, Strong, Turbo (4 levels) |
| Brush types | Brushless Suction Port (Tangle-free design ideal for pet hair) + Dual side brushes. | Multidimensional Anti-Tangle system (V-shaped main brush with a comb structure to prevent hair wrapping). |
| Carpet boost | Yes; automatically increases suction by up to 200% upon carpet detection. | Yes (Automatic detection) |
| Noise level (dB) | ~55 dB (Eco/Quiet mode). | < 50 dB (Silent mode); up to 72 dB (Turbo). |
| Navigation & Sensors | ||
| Navigation type | ToF LiDAR (Time-of-Flight) with 360° instant room mapping. | 360° LDS Laser Navigation (Lidar) |
| Mapping support | Real-time visual mapping in the app; supports multi-floor memory. | 3D mapping, Multi-floor management, Real-time path tracking |
| Sensors | 190° PSD (Position Sensitive Detector) for millimeter-level obstacle avoidance; 9 sets of sensors for day/night obstacle detection | Cliff sensors, infrared recharge sensor, proximity bumper, and edge-following laser. |
| Smart home integration | Amazon Alexa, Google Assistant, and Lefant Life App. | Xiaomi Home App, Amazon Alexa, Google Assistant. |
| Battery & Charging | ||
| Battery capacity | 2,600 mAh | 5,200 mAh. |
| Runtime | Up to 170–175 minutes (covers ~1,700 sq. ft.) | Up to 180 minutes in Standard mode |
| Charging type | Automatic contact charging via a compact dock | Automatic Smart Docking |
| Recharge & resume support | Yes | Yes |
| Connectivity & App Features | ||
| Wi-Fi / App control | 2.4 GHz Wi-Fi & Bluetooth pairing via the Lefant App | 2.4 GHz Wi-Fi; Xiaomi Home App |
| Scheduling | Weekly/Daily recurring timers | Room-specific, zone-based, and frequency scheduling |
| Remote control / voice control | Full app remote and voice command support | App remote control; supports "Hey Google" and Alexa |
| No-go zones / virtual walls | Yes; digital boundaries can be set in the app map. | Software-defined via App. |
| Various Features | ||
| Advanced Features | FreeMove 3.0 (anti-stuck technology); smart carpet avoidance (won't mop on carpets). | Active Hair Cutting (specific variants include a hidden push-knife in the roller to slice tangled hair); Y-shaped mopping paths |
| Additional Options | Supports reusable mop pads and disposable face-towel adapters for eco-friendly mopping. | Child lock, Do Not Disturb (DND) periods, and targeted cleaning around specific furniture (e.g., "Clean under the sofa") |
| Filtration & Maintenance | ||
| Filter type | HEPA Filter (High-efficiency particulate air) | High-efficiency E11/HEPA Filter. |
| Washable filter | Yes (Maintenance recommended every 1–3 months). | Yes |
| Mop water tank | 200 ml (Removable attachment) | 210 mL (Internal electronic tank) |
| Self-emptying bin support | No (Manual empty; standard for the M310 series). | Yes (Auto-empty station included) |
| Misc | ||
| Colors | Gray (Standard), White (Ultra White). | White |
| Inside the box | Robot, Charging Dock, Power Adapter, 2 sets of Side Brushes, 1 Reusable Mop Pad, Water Tank, HEPA Filter, and User Manual. | Robot, Auto-Empty Station, 1x Anti-tangle side brush, 1x Main brush, 1x Dust bag (pre-installed), Mop pad assembly, User manual. |
| Price | $150 to $230 | ~$400.00 |
| Full Details | M310 Ultra - Full Specifications | Robot Vacuum H40 - Full Specifications |