ExamsFive straight hours of studying
You sit up, you focus, and thirty seconds later you're sunk again. The nudge arrives on its own.
Posture trainer
Stop Reminding Yourself to Sit Up — The Sensor Does It for You
$49.90
$59.9910-day battery
A sensor that vibrates when you slouch, so you stop spending attention on remembering.
Free shipping across the US
Estimated delivery 13-14 days
Secure checkout
Vibration reminder
Gentle and brief when you slouch. Impossible to ignore, impossible to find annoying.
Ten days per charge
Two hours on USB and you forget about it until next week.
12.5 × 13.8 cm, 70 grams
It sits over your shoulders like a light yoke, not a clip. Slim enough to go unnoticed under a t-shirt, but check the size diagram before you order.
Learns your position
Records your correct posture and compares against it in real time.
What you get
- 1 posture sensor
- 1 USB charging cable
- User manual and box
You know exactly how you should be sitting. The problem is you remember it four times a day, for eleven seconds each time.
You straighten up, focus on the work, and thirty seconds later you're sunk into the chair again. It isn't a willpower problem: correcting your posture takes attention you're already spending elsewhere.
Delegate the reminder
This 70-gram sensor sits on your back and learns your correct position. When you slouch, it vibrates. Gentle, brief, impossible to ignore. It does nothing else — and that's exactly what you needed.
- You stop spending attention on this. The nudge arrives on its own. You keep working.
- It works over weeks, not sessions. Constant repetition is what retrains the habit, and the sensor never tires or forgets.
- Ten days per charge. Two hours on USB and you forget about it until next week.
- Nobody sees it. Under a t-shirt it goes unnoticed, on a video call or in class.
What it doesn't do
It doesn't hold you or pull you back. It isn't a brace. If you want physical support, look at our lumbar belt. This is something else: a silent coach so that good posture becomes the one you fall into without thinking.
Who it's for
For anyone working eight hours from a chair they didn't choose. For students in exam mode. For anyone who's been told to sit up straight so often they've stopped hearing it.
Specs
- Material: ABS + food-grade silicone
- Weight: 70 g · Size: 12.5 × 11.9 × 13.8 cm
- Battery: up to 10 days · USB charging (2 h) · 5 V, 0.6 W
- In the box: device, USB cable, manual, box
- Recommended age: 4+
Posture training device. Not a medical device and not a substitute for professional diagnosis or treatment.
Portante
Why it works when willpower doesn't
Un entrenamiento sencillo con beneficios que notas en el día a día y en el deporte.
You stop spending attention
The nudge arrives on its own. You keep working.
Real consistency
It never tires or forgets: repetition is what retrains the habit.
It doesn't show
Discreet under clothing, at the office and in class.
For seated days
Built for anyone spending eight hours in a chair they didn't choose.
When it counts
Exams
Remote work
Long sessions
Phone
Four moments you'll be glad you have it
Not testimonials: these are the buying reasons that came out of the market research for this category.
Exams
Remote workEight hours in a chair you didn't choose
Good posture takes attention you're already spending on the work.
Long sessionsWhen the hours disappear
Work or leisure, the body does the same thing. The sensor doesn't care and doesn't get tired.
PhoneHead always down
Habits are built by constant repetition — which is exactly what a reminder that never forgets provides.
Is this you?
Who it's for
- You work from home eight hours in a chair you didn't choose
- You study for long stretches
- You've been told to sit up straight so often you've stopped hearing it
- You want to fix the habit, not wear a brace
Questions
Frequently asked questions
No, and that's deliberate. It doesn't pull on you and it isn't a brace: it nudges you so you correct yourself. If you want physical support, look at the lumbar belt.
Up to 10 days per charge. It charges over USB in about 2 hours.
It weighs 70 grams and is flat, so it goes unnoticed under a t-shirt.
13 to 14 business days across the US, with tracking and free shipping.
No. It's a posture training device. It does not replace professional diagnosis or treatment.
It measures 12.5 × 11.9 × 13.8 cm and weighs 70 g — roughly the footprint of a pair of over-ear headphones. It rests over the shoulders rather than clipping on, and there is one size. The manufacturer rates it from age 4 upwards, so it suits teenagers and adults with average builds; if your shoulders are broad, check the size diagram in the gallery first. If it doesn't fit you, our 30-day refund applies and you don't have to send it back.