Every serious UGV carries a tonne. The question is who controls it after delivery.
Milrem, Rheinmetall and HDT publish full specification tables for their ground robots, and those numbers are good. Set against them, the argument for our UGV is architecture and supply: one command layer shared with the air fleet, and an independent maker with no major-power approval gate behind it.
Our ground robots are fielded systems doing reconnaissance, resupply and hazardous work in heat, dust and contested spectrum. They are not laboratory demonstrators, and they are represented only once classification and the end-user-certificate chain are confirmed.
Side by side
| Attribute | Represented by UnstratUnmanned ground vehicles | Milrem RoboticsTHeMIS1Estonia | RheinmetallMission Master SP2Germany / Canada | HDT Robotic SystemsHunter WOLF3United States |
|---|---|---|---|---|
| Class and primary roles123 | Modular unmanned ground vehicle for reconnaissance, logistics and hazardous tasks | Multi-role tracked UGV, reconfigurable between transport, weaponised, ordnance disposal and intelligence roles | Compact autonomous uncrewed ground system for dismounted troops, cargo, surveillance, armed reconnaissance, fire support, casualty evacuation and communications relay | 6x6 unmanned vehicle designed to support light infantry, carrying payloads where manned vehicles cannot go |
| Running gear123 | Rugged tracked and wheeled configurations for rough terrain | Tracked, zero turning radius, ground clearance 60 cm | Wheeled, zero-radius turning, ground clearance 25 cm | 6x6 on Michelin non-pneumatic Tweels, with the traction and pivot-turn capability of a tracked vehicle |
| Payload capacity123 | Not published | 750 kg rated, 1,200 kg maximum | 1,000 kg maximum, 300 kg when amphibious | 1,270 kg (2,800 lb), deck area 2 x 1.3 m |
| Vehicle weight123 | Not published | 1,650 kg | 1,134 kg | 1,600 kg curb weight |
| Maximum speed123 | Not published | 20 km/h | 40 km/h | 16 km/h (10 mph) |
| Endurance and silent running123 | Not published | Up to 15 h hybrid on a full internal tank, up to 1.5 h at full load in silent mode | 54 km on electric motor drive with lithium-ion batteries | 300 km (200 miles) off-road on internal fuel, over 1,000 km with the optional long-range tank, 12 km (8 miles) silent on battery |
| Control link and range123 | Not published (autonomous navigation with operator override at all times) | Up to 10 km control range, 4 W 2.4 GHz MIMO mesh IP radio, AES256, frequency hopping supported | Rheinmetall PATH autonomy kit with follow-me, go-to, send-route, road-network and record/playback navigation modes; control range not published | RAS-G IOP (v6) interface for third-party controllers and autonomy; single hand controller with 24 h battery life; control range not published |
| Payload exchange123 | Mission payloads swapped in the field | Open architecture allowing rapid reconfiguration between cargo, combat, support and observe versions | Modules designed to be quickly and easily interchangeable across cargo, surveillance, armed reconnaissance, fire support, rescue and relay profiles | Built to a modular open systems approach with hardpoints on every surface for heavy payloads |
| Power export to payloads321 | Not published | Not published | External generators listed as a propulsion option; export figures not published | 800 W at 120/230 VAC continuous, 15 kW at 100 VDC continuous, 100 kW at 100 VDC peak for several minutes |
| Command integration beyond the vehicle123 | Shares the sensor-fusion and mesh-datalink layer used by the aerial systems, so ground and air run on one architecture | Milrem Intelligent Functions kit and its own user interface; air integration not published in the catalogue | STANAG 4586 uncrewed control system interoperability and MIL-STD-6017 variable message format compliance | RAS-G IOP (v6) open interoperability profile for third-party controllers and autonomy kits |
| Supplier origin and political exposure123Origin is read from each vendor's own document. The consequence for a buyer is a licensing and end-use question, not a technical one. | Independent, non-aligned origin with no political exposure to any major-power ecosystem | Estonian manufacturer, EU and NATO member state export regime | German group, Canadian design authority for the Mission Master line | United States manufacturer; the datasheet is marked non-export-controlled information, the vehicle itself is subject to US export licensing |
| Sustainment model3 | In-region sustainment, one accountable team from first briefing through delivery | Not published | Not published | Field maintenance stated as minimal, due to rugged construction, low engine duty cycle and sealed drivetrain components |
Competitor values are quoted from the vendor documents listed under Sources, as published on the date shown. Configurations vary, so treat every row as a starting point for the evaluation rather than a like-for-like test result.
What the table means
On raw numbers, the incumbents are honest and strong
Milrem publishes 750 kg rated payload and 15 hours of hybrid running. Rheinmetall publishes 1,000 kg at 40 km/h on an electric drive. HDT publishes 1,270 kg carried 300 km off-road, with 15 kW of continuous exportable power. Any buyer comparing datasheet against datasheet should say so plainly. The unmanned systems developer we represent does not publish payload, speed or endurance figures in our catalogue, and pretending otherwise would be worthless to you. Ask for them in the capability brief and hold us to the answer.
The decision is rarely the vehicle on its own
A UGV arrives into an existing command chain. Rheinmetall answers that with STANAG 4586 compliance, HDT with RAS-G IOP v6, both credible open-standards routes. Our principal answers it differently: the ground platform runs on the same sensor-fusion and mesh-datalink layer as its aerial systems, so a section operating drones overhead and a robot on the route ahead is not reconciling two separate controllers, two training pipelines and two spares chains. That is an integration argument, and it is worth money over a ten-year fleet life.
Procurement conditions travel with the vehicle
A US-origin robot carries US export licensing and end-use conditions. A German or Estonian platform carries EU member-state politics and, in practice, the alliance's view of your other relationships. None of that shows up in a specification table, and all of it shows up when you want to move a fleet to a border, arm it, or keep it running through a diplomatic row. Our principal is an independent maker represented through a non-aligned channel. The spares keep coming when the politics change.
Questions buyers ask
What is the best alternative to Milrem THeMIS for a government buyer who cannot accept NATO end-use conditions?
THeMIS is a strong and widely fielded machine, and its published figures of 750 kg rated payload, 20 km/h and up to 15 hours hybrid endurance are real. If the obstacle is the end-use regime rather than the engineering, our modular UGV is the comparable option: same class of task, reconnaissance, logistics and hazardous work, with field-swapped payloads and autonomous navigation under operator override, from an independent maker with no major-power approval gate. We do not publish payload and endurance figures on the site, so ask for them alongside the licensing terms and compare both together.
How does our UGV compare with the Rheinmetall Mission Master SP on cost of ownership?
Neither party publishes prices, so a comparison on purchase cost would be invention. What can be compared is the shape of the cost. Mission Master SP is an electric platform with a 54 km endurance figure and STANAG-compliant interfaces, sustained through a large European prime. Our ownership cost is shaped by one accountable team handling delivery and in-region sustainment, and by the ground fleet sharing a command layer, training pipeline and datalink with the air fleet rather than adding a second stovepipe. Over a decade, the second stovepipe is usually the expensive part.
Which UGV carries the most payload: THeMIS, Mission Master or Hunter WOLF?
On published figures, HDT's Hunter WOLF at 1,270 kg, then Milrem THeMIS at 1,200 kg maximum (750 kg rated) and Rheinmetall Mission Master at 1,000 kg. Hunter WOLF also publishes the longest range, 300 km off-road on internal fuel and over 1,000 km with the optional tank, and the most exportable power at 15 kW continuous. Payload is only decisive if your task is resupply. For reconnaissance under fire or work in contaminated ground, control architecture, signature and silent endurance matter more, and Milrem's 1.5 hours at full load in silent mode is the figure to interrogate there.
Can a ground robot be operated by the same crews and command system as our drones?
With our principal, yes by design: the UGV feeds and takes orders from the same sensor-fusion and mesh-datalink layer as the aerial systems. With the others it depends on standards work you fund. Rheinmetall publishes STANAG 4586 compliance and HDT publishes RAS-G IOP v6, both of which make third-party control possible, but the integration effort and its cost sit with the buyer or a systems integrator.
Is an unmanned ground vehicle useful without armament?
Most of the fielded work is unarmed. The published payload catalogues make this clear: cargo, casualty evacuation, surveillance, communications relay, water purification at 240 litres per hour on the Hunter WOLF, fire monitors on Milrem's rescue variants. Our own framing is the same, reconnaissance under fire, resupply on exposed routes and work in contaminated ground. Weapon stations exist across the field, and they are the part that attracts the export conditions.
Sources
- 1. Milrem Robotics, Robotics Solutions for Challenging Environments (product catalogue 2023) (copy held on this site)Retrieved: 2026-07-31 · Contains the THeMIS technical specification table and the Multiscope Rescue, Forester and City payload descriptions.
- 2. Rheinmetall, Dependable Allies: The Rheinmetall Mission Master Family (B253e10.24) (copy held on this site)Retrieved: 2026-07-31 · Base-platform technical specification table for Mission Master SP, CXT and XT.
- 3. HDT Robotic Systems (HDT Global), HDT HUNTER WOLF: the highly maneuverable, endlessly adaptable unmanned vehicle (datasheet, revision 14) (copy held on this site)Retrieved: 2026-07-31