Login

Your Bag 0

Your cart is empty
Chrome
Black
Gold
Calmara® Smart Ring
Chrome
Black
Gold
Calmara® Smart Ring
Chrome
Black
Gold
Calmara® Smart Ring
Chrome
Black
Gold
Calmara® Smart Ring
Chrome
Black
Gold
Calmara® Smart Ring
Calmara® Smart Ring
Calmara® Smart Ring
Calmara® Smart Ring
Chrome
Black
Calmara® Smart Ring
Calmara® Smart Ring
Calmara® Smart Ring
Calmara® Smart Ring
Black
Calmara® Smart Ring

Calmara® Smart Ring

Bestseller
1.462 reviews
Sale price £149.95
£74.98 with 70% OFF

Crafted from titanium and stainless steel, the Calmara® Ring is the world’s thinnest smart ring.
Track sleep, stress, recovery, heart rate, blood oxygen, pregnancy and includes a free AI coach in the Calmara app that helps you turn insights into action.

Step 1: Select Finish

Chrome
Gold
Black

Step 2: Select Size - (Size Chart)

Ring Size

Step 3: Add To Cart

25.000+ Happy Customers
Rated 4.9 out of 5
1 Item
£249.92 £149.95 40% OFF
1 Item
£249.92 £149.95 40% OFF
Shipping Truck Icon
IN STOCK: Ships by Tue, Oct 14
×

Size Chart

Wearing the right size ensures both comfort and accurate health tracking.

Our rings come in sizes 6–14 (16.5 mm to 23.1 mm). Measure your finger to find your ideal fit.
Chrome
Calmara® Smart Ring Sale price £149.95

The Future of Health, On Your Finger

The Calmara Ring blends sleek titanium design with cutting-edge health technology, seamlessly built into an ultra-thin form to deliver three powerful benefits.
Ultra-Thin Body

The world’s slimmest titanium smart ring comfort you’ll forget you’re wearing.

Advanced Health Sensors

Track heart rate, HRV, SpO₂, sleep, and more with medical-grade precision.

Personal AI-Coach

Actionable guidance that turns your secure health data into daily progress.

What people use the Calmara Ring for

Real insights that fit into real lives.

Calmara turns continuous signals—heart rate, HRV, SpO₂, and temperature—into simple guidance you can act on. From pregnancy to sleep, training to stress, here’s how our community puts it to work every day.

CHOOSE YOUR RING
Person sleeping with a dark background wearing calmara bundle

Sleep

92%

Stage tracking and regularity scores reveal what improves recovery and next-day energy—so you wake up ready.

Pregnancy

12%

Cycle and temperature trends support fertility planning and track pregnancy milestones, with shareable insights for partners and clinicians.

Exercise

47%

Heart rate, HRV, and VO₂Max estimates translate workouts into smarter pacing, zones, and recovery—beginner to pro.

Calm & Clarity

23%

Subtle HRV and temperature shifts expose hidden stress; timely nudges help you pause, breathe, and reset.

Your Complete Health Starter Kit

The Calmara Ring comes with everything you need to start tracking and improving your health from day one. Just the ring, the charging case, and the free app — no extras required.
Calmara Ring

Ultra-thin titanium design with advanced sensors to track sleep, recovery, heart rate, SpO₂, stress, and women’s health — all in a discreet ring you can wear 24/7.

Charging Case

Compact magnetic charging case delivers a full charge in just 120 minutes, keeping your ring ready with up to 7 days of battery life.

Free App

More than data — the Calmara app turns numbers into guidance. AI-powered insights help you understand patterns, improve routines, and take action.

CHOOSE YOUR RING
Two women in formal attire standing against a brown background wearing calmara jewellery

reddot winner 2024

The distinction for high design quality

25K+ Happy Customers

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Excellent 4.8

“I’ve been wearing my ring and bracelet bundle for a month now, and my sleep improved almost instantly. They have become a daily reminder to stick to a healthier routine.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Emily T.

Gold bracelet in a white box with 'Calmara' branding on a marble surface

“I got both the ring and bracelet and I’m honestly obsessed. They’re gorgeous, feel premium, and I genuinely feel more balanced and centred when I wear them.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Amelia B.

Hand wearing a gold ring and bracelet on a neutral background

“The Calmara ring has really helped with my focus. I’m less restless during the day and my sleep has improved too. Plus it’s subtle and elegant.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Returning Customer

Chloe M.

“I didn’t expect much from the Calmara ring but it’s made a huge difference. I’m calmer, more focused, and even sleeping better. It’s part of my daily routine now.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Lucy H.

Gold ring in a Calmara branded box on a gray surface

 “I was struggling with anxiety and constant racing thoughts. Since wearing the ring, I feel more present. It’s a small thing but it helps more than I thought.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Sophie R.

Hand with red nail polish wearing a silver ring and bracelet on a light surface.

I love how minimal and stylish the Calmara ring is. It doesn’t look like a ‘wellness’ gadget but I can feel it helping me stay calm in stressful moments.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Freya W.

Hand holding a box with 'CALMARA' branding on a neutral background

“Wearing the Calmara ring feels like a gentle reminder to slow down and breathe. I’ve noticed I’m less tense and much more present during the day.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Jacob S.

“I’ve been wearing my ring and bracelet bundle for a month now, and my sleep improved almost instantly. They have become a daily reminder to stick to a healthier routine.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Emily T.

Gold bracelet in a white box with 'Calmara' branding on a marble surface

“I got both the ring and bracelet and I’m honestly obsessed. They’re gorgeous, feel premium, and I genuinely feel more balanced and centred when I wear them.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Amelia B.

Hand wearing a gold ring and bracelet on a neutral background

“The Calmara ring has really helped with my focus. I’m less restless during the day and my sleep has improved too. Plus it’s subtle and elegant.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Returning Customer

Chloe M.

“I didn’t expect much from the Calmara ring but it’s made a huge difference. I’m calmer, more focused, and even sleeping better. It’s part of my daily routine now.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Lucy H.

Gold ring in a Calmara branded box on a gray surface

 “I was struggling with anxiety and constant racing thoughts. Since wearing the ring, I feel more present. It’s a small thing but it helps more than I thought.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Sophie R.

Hand with red nail polish wearing a silver ring and bracelet on a light surface.

I love how minimal and stylish the Calmara ring is. It doesn’t look like a ‘wellness’ gadget but I can feel it helping me stay calm in stressful moments.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Freya W.

Hand holding a box with 'CALMARA' branding on a neutral background

“Wearing the Calmara ring feels like a gentle reminder to slow down and breathe. I’ve noticed I’m less tense and much more present during the day.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Jacob S.

“I’ve been wearing my ring and bracelet bundle for a month now, and my sleep improved almost instantly. They have become a daily reminder to stick to a healthier routine.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Emily T.

Gold bracelet in a white box with 'Calmara' branding on a marble surface

“I got both the ring and bracelet and I’m honestly obsessed. They’re gorgeous, feel premium, and I genuinely feel more balanced and centred when I wear them.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Amelia B.

Hand wearing a gold ring and bracelet on a neutral background

“The Calmara ring has really helped with my focus. I’m less restless during the day and my sleep has improved too. Plus it’s subtle and elegant.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Returning Customer

Chloe M.

“I didn’t expect much from the Calmara ring but it’s made a huge difference. I’m calmer, more focused, and even sleeping better. It’s part of my daily routine now.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Lucy H.

Gold ring in a Calmara branded box on a gray surface

 “I was struggling with anxiety and constant racing thoughts. Since wearing the ring, I feel more present. It’s a small thing but it helps more than I thought.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Sophie R.

Hand with red nail polish wearing a silver ring and bracelet on a light surface.

I love how minimal and stylish the Calmara ring is. It doesn’t look like a ‘wellness’ gadget but I can feel it helping me stay calm in stressful moments.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Freya W.

Hand holding a box with 'CALMARA' branding on a neutral background

“Wearing the Calmara ring feels like a gentle reminder to slow down and breathe. I’ve noticed I’m less tense and much more present during the day.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Jacob S.

“I’ve been wearing my ring and bracelet bundle for a month now, and my sleep improved almost instantly. They have become a daily reminder to stick to a healthier routine.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Emily T.

Gold bracelet in a white box with 'Calmara' branding on a marble surface

“I got both the ring and bracelet and I’m honestly obsessed. They’re gorgeous, feel premium, and I genuinely feel more balanced and centred when I wear them.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Amelia B.

Hand wearing a gold ring and bracelet on a neutral background

“The Calmara ring has really helped with my focus. I’m less restless during the day and my sleep has improved too. Plus it’s subtle and elegant.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Returning Customer

Chloe M.

“I didn’t expect much from the Calmara ring but it’s made a huge difference. I’m calmer, more focused, and even sleeping better. It’s part of my daily routine now.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Lucy H.

Gold ring in a Calmara branded box on a gray surface

 “I was struggling with anxiety and constant racing thoughts. Since wearing the ring, I feel more present. It’s a small thing but it helps more than I thought.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Sophie R.

Hand with red nail polish wearing a silver ring and bracelet on a light surface.

I love how minimal and stylish the Calmara ring is. It doesn’t look like a ‘wellness’ gadget but I can feel it helping me stay calm in stressful moments.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Freya W.

Hand holding a box with 'CALMARA' branding on a neutral background

“Wearing the Calmara ring feels like a gentle reminder to slow down and breathe. I’ve noticed I’m less tense and much more present during the day.”

Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background Five red stars on a transparent background

Verified

Jacob S.

Questions?

We got answers

Unlock Bigger Savings with Every Ring

Save Up to 65% When You Buy 4 Rings

The more you add, the more you save. Whether you’re buying for yourself or someone else, you’ll get up to 65% off when you order a set of four. No codes, no hassle — just automatic savings on every extra ring.

Buy Now
SCROLL TO TOP