The homepage pitch is blunt: a huge open-air space, full equipment, no waiting for machines. The numbers behind it hold up. Real Gym lists more than 100 machines, more than 200 classes a month, parking for 60 cars and up to 1,300 square metres of training floor. For scale, Jetts’ own chief executive said in 2022 that his chain fits a club into 600 to 800 square metres (AmericanSpa).

There’s a plain reason the floor is so full. Real Gym belongs to Home Fit Tools, a company that has imported and sold fitness equipment for more than ten years, according to its own JobThai recruitment listing. A gym owned by an equipment importer ends up with a lot of equipment. Obvious, yes. It’s also the biggest single reason Real Gym feels nothing like a mall club.

Why open-air suits Bangkok better than it sounds

Air-conditioning is the default sales line in this city, so “open-air” can read like a downgrade. Often it’s the reverse. A sealed room full of sweating people needs serious ventilation, and one Bangkok property guide says outright that a gym with poor airflow in this heat becomes unbearable (Superagent). Real Gym’s open sides keep air moving, and you don’t get that stale, recycled smell.

Timing matters, though. Nothing open-air in Bangkok is pleasant at 2pm in April. Train early (doors open at 7am on weekdays) or from late afternoon, which is when the class timetable gets busy anyway.

A timetable that goes well past Zumba

Classes are where Real Gym wins people over. The usual menu is all there: Body Pump, Body Combat, Zumba, dance, yoga, Pilates, TRX. Then it carries on into Brazilian jiu-jitsu, strength and conditioning, and the hybrid race formats that have swept Bangkok fitness over the last two years: HYROX, Spartan and DEKA. Spartan, HYROX 365 and DEKA BKK Fit all appear on Real Gym’s list of official partners.

A weekday at the Sai Mai branch, going by its ClassPass schedule, looks like yoga at 10am, a HYROX Complete session at 5pm and Body Combat at 6pm. At Liab Duan, one ClassPass member wrote up the Real Warrior class, a Spartan-prep session where the coach warned everyone at the start: “Today’s Level is heavy – very heavy.” They stayed, and called it super fun and challenging. That about sums up the mood.

Races, run clubs and a reason to come back

HYROX explains why so many people are shopping for gyms like this right now. Organisers say the Bangkok race in March 2026 drew more than 17,500 competitors (Africanews), and when actor Nadech Kugimiya lined up, Thairath ran a whole explainer on what the sport is (Thairath). Most gyms courting that crowd are boutique studios in the CBD; look at The Standard’s list of 14 HYROX prep gyms.

Real Gym brings it to the suburbs. It hosts its own HYROX Thailand by Real Gym event, a monthly Challenge Day, a Spartan Prep Camp and a Real Run Club drill on the first Saturday of every month. If you want to see the sled push, rowing and wall-ball stations before committing, the HYROX simulation video on its YouTube channel shows the whole thing.

Ratings and branches

Members rate it highly and consistently. On ClassPass, Sai Mai scores 4.9 from 88 ratings, while Sukhaphiban 5 (4.9), Liab Duan (4.9) and Safari World (4.8) each sit above 100 ratings. The branch page lists seven locations: