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21-DAY DIARY

"I wore an EMS trainer for 20 minutes a day for 21 days — here’s what happened"

No squats. No gym. Three weeks on the couch. A 34-year-old mother of two tries something that sounded too good to be true.

A
Anna L. — Real customer at Gymfit
Published 14 April 2026 · 7 min read
⚡ TL;DR
Tried working out for 5 years with no results. Bought an EMS Booty Trainer on impulse. Wore it 20 min/day for 21 days — mostly in front of Netflix. My favorite jeans fit differently, I can feel my glutes for the first time, and I’ve stopped hating mirrors.

I’ll be honest: I have never had a "butt". I have two kids, an office job, and a relationship with squats that consists of me doing 10 at home after a bad evening and then forgetting about it for three weeks.

A month ago I saw an ad for the Gymfit EMS Booty Trainer 2.0. My first thought: "classic Instagram scam." My second thought: "but 30-day returns..."

Here’s what happened over the next 21 days. I kept a diary every day. No filter, no sponsorship — I paid for mine myself.


THE DIARY STARTS HERE

1
Monday · First time

"This can’t really be this easy..."

Day 1 EMS Booty Trainer dag 1

The package arrived in two days. Inside was the trainer itself (soft silicone, feels skin-friendly right away), a USB cable, an elastic waist strap, and a manual.

The first thing that surprised me: no gel pads. I’ve tried TENS devices before and hated how quickly the gel pads dry out. This one has built-in silicone electrodes. One-time purchase, done.

I strapped it on, set the intensity to level 1 of 6, and pressed start. The first contractions felt like a pulsing kneading — like someone pressing a thumb rhythmically into your butt. Not uncomfortable. Just… unfamiliar.

Day 1 — first time on Dag 1 första gången med bältet

After 20 minutes, the unit switched off by itself. I stood up. And I swear: I could feel my glutes for the first time in years. Not sore. Just… awake.

"I’m 34 and I’ve just discovered I have glutes."
3
Wednesday · Skepticism tested

My husband asks why I’m staring at the mirror

Day 3 — Netflix routine Dag 3 — Netflix-rutin med bältet

Three days in. 20 minutes on the couch at 21:30 while we were watching a crime series. My husband asked what was "buzzing" from my side of the couch. I showed him. He shrugged.

The weird part: My butt is sore. Like after a proper leg workout at the gym. But I haven’t done a single squat.

I do a little reading. EMS (Electrical Muscle Stimulation) has been used in physiotherapy and rehab since the 1970s. It sends electrical impulses directly to the muscle fibers. The difference from regular exercise: you activate deeper fibers that you usually miss.

3/21
Days
60 min
Total time
Level 2
Intensity
7
Sunday · One week done

First time the jeans fit differently

Day 1 Före
Day 7 Dag 7

This is the day I realized it works.

I pulled on my usual jeans — the ones I’ve had for about two years and which have always sat "a little flat in the back." They were tight over the butt.

Not uncomfortably tight. Just… filled them out in a way they hadn’t before. I took a photo in the full-length mirror. I compared it with a photo from day 1. The difference was subtle, but real.

I’ve started looking forward to the evening when I put it on. Not because I’m disciplined — but because it’s become part of the Netflix routine. You grab the remote, you grab the Booty Trainer.

⚡ FACT BOX
EMS activation recruits both fast- and slow-twitch muscle fibers at the same time — something you rarely achieve with regular strength training. That’s why you often feel a change faster than with traditional exercise.
14
Sunday · Halfway there

My sister: "have you started going to the gym?"

Day 14 Dag 14

Sunday lunch at my mom’s. My sister — who works out four times a week and has always been "the fit one" — looks at me and asks if I’ve started going to the gym.

I just laughed. "No. I’ve just put on a gadget while I watch TV."

This is the point where I realize it’s not in my head. I’ve gone up to level 4 on the device. The programs alternate between contraction and pulsing — when I choose "Lift," I feel the muscles working at a completely different angle than when I’m sitting at my desk.

I’ve also started taking the stairs instead of the elevator, which is extremely out of character.

14/21
Days
280 min
Total time
Level 4
Intensity
"I’ve just put on a gadget while I watch TV."
21
Sunday · Day 21

End of the experiment

Day 1 Dag 1
Day 21 Dag 21

Three weeks. 21 sessions. 420 minutes total use. These are the results:

+2cm
Butt circumference
21/21
Days in a row
0
Squats completed

What I didn’t expect: the change in how I feel about myself. Not "wow, I have the perfect butt now" — more like "I’ve actually had glutes all along, they just never got activated."

I’m continuing. Not 21 days in a row — but 4–5 times/week, in front of the TV. It’s so low-effort that it would be silly not to.

Booty Trainer flat lay
CONCLUSION

Would I recommend it to a friend?

Yes. But not to everyone. This isn’t a miracle cure. It’s a tool that removes the most common reason butt training fails — that you don’t have time, don’t like the gym, or lose interest after two weeks. Put it into your Netflix routine and you’ve already won.

Gymfit EMS Booty Trainer 2.0
⚡ The one I used — still on sale

Gymfit EMS Booty Trainer 2.0

Top-rated booty trainer 2026 · 30-day returns

399 kr 599 kr −33%
  • EMS activates muscles more deeply than regular exercise
  • 6 workout programs — choose a level from beginner to advanced
  • 20 min/day, hands-free on the couch or in the kitchen
  • Built-in silicone electrodes — no gel pads to replace
  • USB charging · CE certified · 30-day guarantee
Order for 399 kr →
✓ Free shipping
✓ Track package
✓ Klarna
✓ Ships within 24h
Not satisfied within 30 days? Send it back — we refund 100%.

Common reader questions

Do I need to buy gel pads separately?
No. Booty Trainer 2.0 has built-in silicone electrodes that never need replacing. No ongoing costs.
How long until results?
Most people notice a visible lifting effect within 2–4 weeks when using it daily for 20 minutes.
Does it work under clothes?
Yes, it’s thin and discreet. You can wear it under leggings or sweatpants without it showing.
Who should not use it?
It is not recommended for pregnant women, people with pacemakers, heart problems, or people over 70 years old. If you have questions — consult a doctor.
What if I’m not satisfied?
Send it back within 30 days for a 100% refund. No questions asked.
How do I charge it?
Via the included USB cable. A full charge takes about 2 hours and lasts for several workouts.
399 kr 599 kr
Free shipping · 30-day returns
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