Booster T1: the other robot UFB has used besides the Unitree G1, and what is and is not published about it
UFB's Season 1 fights used Booster T1s beside Unitree G1s. A RoboCup-hosted spec sheet gives 1.18 m, about 30 kg and 23 degrees of freedom; Booster publishes no price we could find, and UFB's Season 2 page names only G1s.
Almost every humanoid robot fight on the record is fought by a Unitree G1 or an EngineAI T800. The Booster Robotics T1 is the exception worth knowing: Ultimate Bots (UFB) has used it beside the G1, and it comes from a company whose public reputation is in robot football, not fighting. This is what is published about it, and what is not.
Where it has fought. Roboxing's earlier reporting on UFB, based on the league's own material, says Season 1 fights were piloted on Unitree G1s and Booster T1s, driven with game controllers. UFB's Season 2 description on ultimatebots.com/schedule, which we last read on 3 November, names league-assigned Unitree G1s for the four permanent teams and does not mention the T1. Whether any T1 will appear in a Season 2 fight is not stated.
What it is. A one-page specification sheet for the T1, hosted on the RoboCup Humanoid League's website and written for a competing team, gives a height of 1.18 metres and a weight of about 30 kilograms. That is a little shorter than the 132 cm G1 listed on this site. It lists 23 active degrees of freedom: two in the head, four in each arm (expandable to seven), one in the waist and six in each leg. Two computing versions are described: a Basic version running one NVIDIA Jetson AGX Orin (32 GB), and a Standard version that adds a separate Intel Core i7 motion-control board. It lists Wi-Fi 6, a battery life of about 1.5 hours, a walking speed of 0.5 metres per second and an emergency-stop button, and says the robot can walk on uneven ground and resist impact disturbances. That is a team's sheet, not a manufacturer datasheet, and the figures are the sheet's own.
What it is for. The same sheet calls the T1 a humanoid robot development platform. It was built for researchers and competitions in which robots play football on their own, not for taking hits. Nothing we read describes a fighting-specific T1, and the sheet's phrase about resisting impact disturbances is about staying upright, not about surviving a punch.
What Booster sells now. Booster's own home page (read 8 November 2026) leads with two newer products, the T2, described as a flagship embodied development platform, and the K1, an introductory one. The T1 is not one of the two headline robots on that page. Booster's page also links to a press release dated 9 July 2026 about RoboCup 2026; we could not open it and make no claim about what it says.
What is not published. We have not found a price from Booster itself: third-party sites quote prices that differ by a factor of two or more, so we do not give one. This site's machine record carries an approximate figure marked as reported, not confirmed. We have no figures for how many T1s UFB owns or how often one has been repaired.
Why it matters. A league that ran on a research robot in Season 1 and moved to league-assigned G1s in Season 2 is making a choice about machines, not just pilots. If UFB has said why, we have not found it. We will update this if UFB or Booster says whether the T1 returns.