Brynk R5 Glow smart ring with LED display in Obsidian Black

Brynk R5 Glow – Smart Ring with LED Display

Obsidian Black / US 8 (EU 57) / Without charging case
Sale price  $89.99 Regular price $129.99
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Brynk R5 Glow smart ring with LED display in Obsidian Black

Brynk R5 Glow – Smart Ring with LED Display

Sale price  $89.99 Regular price $129.99
★★★★☆ 4.0 · 12 reviews
4.0 12 reviewsRead reviews4.0 out of 5 stars from 12 reviews – go to reviews
  • LED display on the ring time, steps, heart rate and SpO2 at a tap
  • Gestures skip short videos, trigger your phone camera
  • Charging cable always included charging case optional – recharges the ring on the go
  • App with no subscription free for iOS and Android

Color Obsidian Black

The charging case is clear for every color.

Color
Size
Version

What’s included for charging?

Without charging case: Magnetic charging cable (USB) included – you charge the ring at home with the cable.
With charging case: The case has its own battery and recharges the ring on the go – charging cable included too.

Your size in one minute

Free and instant – measure right here, no printer needed.

  1. Wrap a strip of paper snugly but comfortably around your finger – ideally in the evening.
  2. Mark the spot where it overlaps.
  3. Measure up to the mark and enter the length here:
Size chart
SizeCircumferenceInner Ø
US 8 (EU 57) approx. 57.1 mm 18.2 mm
US 9 (EU 60) approx. 59.6 mm 19.0 mm
US 10 (EU 62) approx. 62.4 mm 19.9 mm
US 11 (EU 65) approx. 64.9 mm 20.7 mm
US 12 (EU 68) approx. 67.5 mm 21.5 mm
US 13 (EU 70) approx. 69.8 mm 22.2 mm

Between two sizes? Go with the smaller one – the R5 Glow tends to run large. Printable ring sizer (PDF)

A new ring if you lose weight – no time limit. If you lose weight and the ring no longer fits, we’ll send you the right smaller size once, free of charge. You keep the old ring. Applies to weight loss only, not to a wrongly chosen size. How it works

Free shipping · Delivery in 7–14 business days

  • Based in Austria
  • Support in EnglishWe usually reply within 24 h
Secure paymentAmerican Express Apple Pay Google Pay KlarnaMaestroMastercard Shop Pay Union PayVisa
Product details

The time on your finger instead of your phone: tap once and the LED display of the Brynk R5 Glow lights up. You see sleep, trends and sport modes in the free app.

  • Display via touch button: 1× time, 2× steps, 3× heart rate, 4× blood oxygen, 5× sleep, 6× battery level
  • Gestures: skip short videos and trigger your phone camera, via Bluetooth
  • Battery approx. 3–4 days, fully charged in about 90 minutes – with the magnetic charging cable or the charging case
  • 5 ATM, IP68: handwashing, showers and rain are no problem
  • Free app for iOS and Android, no subscription
  • Sizes US 8 to 13 (EU 57 to 70): the ring runs large – between two sizes, choose the smaller one. Printable ring sizer

In the box: Brynk R5 Glow in your color and size; depending on the version, with a magnetic charging cable (USB) or a charging case with built-in battery and charging cable; instructions.

Shipping: free shipping, delivery in 7–14 business days.

  • 6 readoutsright on the ring, at a tap
  • Approx. 3–4 daysbattery per charge
  • 5 ATMhandwashing and showers
  • 90 minuntil the ring is fully charged

Real customer photos

What buyers say about the R5 Glow

4.0 12 reviews · read all ›
  • ★★★★★

    Seeing the time on my finger is fun

    I already have a smartphone and a smartwatch, but reading the time on the ring is really fun – my old ring without a display just doesn’t have the same charm. Seeing steps, heart rate and blood oxygen right on the ring is really cool, and you can set the brightness anywhere from 100 down to 10 percent by holding down the time display. The charging case is perfect, with nice bright charging lights. Highly recommended.

    J***h · January 2026

  • ★★★★★

    Finally one that works

    Finally a smart ring that works well. It lasts a few days without charging, measures heart rate and oxygen, and the app shows steps and distance pretty accurately. I’m still discovering all the features, but I’m already very happy.

    Anonymous · July 2026

  • ★★★★★

    Bright, clear and discreet

    The readings are as accurate as they can be – compared with my smartwatch, they match up well. The display is bright and clear. It reacts very quickly, so it sometimes turns on by accident, but that really doesn’t bother me. If you’re looking for an affordable, simple device for the most important stats, this is the right choice. The app has even more: sleep, activity, blood oxygen and so on.

    S***i · November 2025

  • ★★★★★

    Better go one size down

    According to the size chart, I should have needed size 11 – but it was way too big, and so was the 10. Only size 9 fits perfectly. My tip: with a finger circumference of around 6.3 cm, size 9 fits great. The ring itself is great – it’s already my second one – and more comfortable to wear than a watch on my wrist.

    Anonymous · January 2026

  • ★★★★★

    Handy for checking the time

    Handy that you can see the time. The battery life isn’t particularly good.

    m***r · December 2025

  • ★★★★★

    Great for trying one out

    Definitely good for finding out whether you like this kind of ring. Showing the time is great. Accuracy: with about 3,100 steps on my phone and 3,130 on my other smart ring, it counted 3,300. Heart rate and oxygen are accurate, though. Battery: depending on how often you trigger a measurement (on the ring or in the app), it lasts 2–3 days, and the charging case is good for about 2–3 charges. It’s water-resistant as described. Size: if you wear an 11 in other smart rings, you’ll need an 11 here too (6 cm circumference, measured snugly). The sleep display in the app is cute, but no match for my much more expensive brand-name ring. Value for money: very good.

    a***r · November 2025

  • ★★★★★

    Happy for the price

    Steps, heart rate and SpO2 work well. Heart rate is recorded automatically every 15 minutes, and sleep is also tracked in 15-minute intervals during the times given in the instructions – if you work unusual shifts, the readings may be off. It lasts about two days between charges; I still charge it every day so I don’t miss any sleep data. With lower brightness, the battery lasts longer. The display is so bright it almost works as a flashlight in the dark. About once a week the button stops responding; a restart fixes it. For the price, I’m happy.

    f***r · November 2025

Features

What the R5 Glow can do

You see the essentials right on the ring, and everything else in the free app.

  • LED display

    Time & stats

    LED display

    Time, steps, heart rate, blood oxygen, sleep and battery – at a tap.

  • Sensors on the inside

    Heart rate & SpO2

    Sensors on the inside

    Measures right on your finger and tracks sleep and steps along the way.

  • Water-resistant for everyday life

    IP68

    Water-resistant for everyday life

    Handwashing, showers, rain – best to take it off for swimming.

  • Charging case for on the go

    200 mAh

    Charging case for on the go

    Built-in battery that recharges the ring several times. Or just use the magnetic charging cable.

Measuring your ring size: the inner circumference in millimeters equals the EU size

Find your size

Your size in one minute

All you need is a strip of paper and a ruler. We list the US size first and the EU size in brackets – the EU size equals the inner circumference in millimeters.

  • Wrap the stripsnug but comfortable – ideally in the afternoon
  • Measure the lengthup to the mark, in millimeters
  • Pick your size62 mm = US 10 (EU 62); if you’re in between, go smaller
Print ring sizer

How it works

How to use the R5 Glow

One touch button, six readouts, two gestures – no menus.

  1. Tap

    Tap

    Tap the touch button once – the time lights up.

  2. Keep tapping

    Keep tapping

    2× steps, 3× heart rate, 4× blood oxygen, 5× sleep, 6× battery level.

  3. Use gestures

    Use gestures

    Skip short videos or trigger your phone camera with a hand movement.

You can adjust the brightness on the ring.

On video

The R5 Glow up close

Tap, read, charge: display, sensor, app and charging case in 20 seconds.

  • Displayonly lights up when you tap
  • Sensorheart rate and blood oxygen right on your finger
  • Charging caserecharges the ring several times on the go
Tech specs

Comparison

What sets the R5 Glow apart

The best-known smart ring only shows you everything in the app – and costs a lot more. With the R5 Glow, you see your stats right on your finger.

Brynk R5 Glow vs. the best-known smart ring

Brynk R5 Glow Brand-name smart ring
Price Budget-friendly Noticeably more expensive
Display on the ring LED display at a tap None
Check stats without your phone Time, steps, heart rate, SpO2, sleep App only
Gestures Short videos and phone camera No
App Free, no subscription Subscription for all features
In the box Magnetic charging cable or charging case with built-in battery Charging station

Features and subscription models may change.

R5 Glow or R3?

Brynk R5 Glow Brynk R3
Display on the ring LED display None
Controls Touch button and gestures In the app
Battery Approx. 3–4 days 3–5 days
Charging Magnetic charging cable or charging case Charging case included
Colors 3 7
Price Same starting price Same starting price

Both come with a free app (no subscription) and free shipping.

Specifications

Tech specs

Model
Brynk R5 Glow, smart ring with LED display
Display
LED display with cyan digits, touch button, adjustable brightness
Shown on the ring
Time, steps, heart rate, blood oxygen (SpO2), sleep duration, battery level
Gestures
Skip short videos, trigger phone camera (via Bluetooth)
In the app
Heart rate, blood oxygen, sleep (deep and light sleep), steps, distance, calories
Sport modes
5: walking, running, cycling, climbing, golf
Housing
Metal, sensor window on the inside
Colors
Obsidian Black, Platinum Silver, Champagne Gold
Sizes
US 8 (EU 57), US 9 (EU 60), US 10 (EU 62), US 11 (EU 65), US 12 (EU 68), US 13 (EU 70) – inner Ø approx. 18.2 to 22.2 mm
Weight
Approx. 7 g
Water resistance
5 ATM, IP68 – handwashing, showers, rain; not for swimming, diving or the sauna
Ring battery
20 mAh, approx. 3–4 days per charge
Charging
Approx. 90 minutes with magnetic charging cable (USB) or in the charging case
Charging case
Built-in battery (200 mAh), clear, charges via USB-C
Connectivity
Bluetooth, free app for iOS and Android
In the box
Ring with magnetic charging cable, or ring with charging case and charging cable – each with instructions
Seller in the EU
Flynk Tech, Austria (operator of Brynk) – address and contact details in our legal notice

The readings are meant for fitness and wellness – this is not a medical device. Questions about safety, the battery or disposal? We’re happy to answer them via our contact form.

In the box

What’s in the box

Depending on the version, with a magnetic charging cable or a charging case.

Charging case and Brynk R5 Glow with magnetic charging cable
  • 1× Brynk R5 Glowin your color and size
  • 1× Magnetic charging cable (USB)“Without charging case” version
  • 1× Charging case with built-in battery“With charging case” version, with charging cable
  • 1× Instructionswith QR code for the free app

A power adapter is not included – you charge via a USB port, e.g. on your phone charger or laptop.

Brynk R5 Charging Case – Clear, with Built-in Battery

Accessories

The charging case is also available separately

For anyone who ordered their R5 Glow without the charging case, or who wants a second one for the office or for travel: clear, with built-in battery (200 mAh).

Buying the ring now? Choose the “With charging case” version above – then the case is already included. The separate charging case comes without a charging cable and ships separately.

All details on the charging case

Questions about the ring

Frequently asked questions

Battery, display, gestures, app and shipping – answered in brief.

Ask a question
What if I lose weight and the ring gets too big?

Then we’ll send you a new R5 Glow in the smaller size once, free of charge – no time limit. You keep the old ring. The guarantee applies to weight loss only, not to a wrongly chosen size. Just email us at support@brynkshop.com with your order number and new size.

How long does the battery last?

About 3–4 days per charge in everyday use. Exactly how long depends on how often you turn on the display and start measurements – if you tap and measure a lot, you’ll charge more like every two days. Lower brightness makes it last longer. After about 90 minutes, it’s fully charged again.

How do I charge the ring – with and without the charging case?

Without charging case: Attach the magnetic charging cable to the charging contacts on the inside of the ring and plug the other end into a USB port. With charging case: Place the ring in the case – the case has its own battery and recharges the ring several times, even on the go. You charge the case itself via USB-C. A power adapter is not included.

Can I dim the display at night?

Yes, you can adjust the brightness on the ring – a low setting is enough at night. The display only turns on when you touch the touch button – while you sleep, a touch can make it light up briefly.

Does the ring show calls or messages?

No. The R5 Glow doesn’t show calls or messages. The display is there for the time and your stats.

What gestures are there?

Two: with a hand movement, you can skip short videos or trigger your phone camera. This works as long as the ring is connected to your phone via Bluetooth. The gestures are sensitive to hand movements.

Do I need an app – and does it cost anything?

The display on the ring works without a phone, too. For sleep, history and sport modes, there’s a free app for iOS and Android – no subscription. You download it via the QR code in the instructions and pair the ring via Bluetooth.

How accurate are the readings?

The R5 Glow is designed for fitness and wellness and is not a medical device. The readings show you trends – depending on your movement, it tends to count slightly more steps.

R5 Glow or R3 – which one is right for me?

The R5 Glow is the ring with a display: you see the time and your stats right on your finger, plus gestures for short videos and the camera. The Brynk R3 has no display, but it’s slimmer and lighter, with cycle tracking, a charging case and seven colors.

When will my ring arrive?

Usually within 7–14 business days. Shipping is free, and you’ll get your tracking number by email.

Where do the reviews come from?

From buyers of the same model at other retailers. Where needed, we translated the texts into English and shortened them – star ratings and criticism are unchanged.

  • 5 stars: 7 (58%)
  • 4 stars: 2 (17%)
  • 3 stars: 1 (8%)
  • 2 stars: 0 (0%)
  • 1 star: 2 (17%)
A
Anonymous
Finally one that works

Finally a smart ring that works well. It lasts a few days without charging, measures heart rate and oxygen, and the app shows steps and distance pretty accurately. I’m still discovering all the features, but I’m already very happy.

J
J***h
Seeing the time on my finger is fun

I already have a smartphone and a smartwatch, but reading the time on the ring is really fun – my old ring without a display just doesn’t have the same charm. Seeing steps, heart rate and blood oxygen right on the ring is really cool, and you can set the brightness anywhere from 100 down to 10 percent by holding down the time display. The charging case is perfect, with nice bright charging lights. Highly recommended.

A
Anonymous
Better go one size down

According to the size chart, I should have needed size 11 – but it was way too big, and so was the 10. Only size 9 fits perfectly. My tip: with a finger circumference of around 6.3 cm, size 9 fits great. The ring itself is great – it’s already my second one – and more comfortable to wear than a watch on my wrist.

A
Anonymous
Exactly as pictured

Arrived well packed and is exactly as pictured.

m
m***r
Handy for checking the time

Handy that you can see the time. The battery life isn’t particularly good.

J
J***a
One spot doesn't light up

The last spot on the right of the display doesn't light up, see photo.

A
Anonymous
Handy as a watch on your finger

Call and message notifications don't come through for me, on either of my two phones – so for me it's mainly a watch on my finger. Because I got the size wrong, I first wore it on my ring finger; there I kept triggering the display with my middle finger, and the battery was empty after a few hours. On my little finger it now lasts 1–2 days. The gestures are too sensitive for me: when I move my hand, the short videos skip ahead on their own. As a gadget on my finger, I still really enjoy it.

A
Anonymous
Broken after 3 days

Dead after 3 days.

a
a***r
Great for trying one out

Definitely good for finding out whether you like this kind of ring. Showing the time is great. Accuracy: with about 3,100 steps on my phone and 3,130 on my other smart ring, it counted 3,300. Heart rate and oxygen are accurate, though. Battery: depending on how often you trigger a measurement (on the ring or in the app), it lasts 2–3 days, and the charging case is good for about 2–3 charges. It’s water-resistant as described. Size: if you wear an 11 in other smart rings, you’ll need an 11 here too (6 cm circumference, measured snugly). The sleep display in the app is cute, but no match for my much more expensive brand-name ring. Value for money: very good.

S
S***i
Bright, clear and discreet

The readings are as accurate as they can be – compared with my smartwatch, they match up well. The display is bright and clear. It reacts very quickly, so it sometimes turns on by accident, but that really doesn’t bother me. If you’re looking for an affordable, simple device for the most important stats, this is the right choice. The app has even more: sleep, activity, blood oxygen and so on.

f
f***r
Happy for the price

Steps, heart rate and SpO2 work well. Heart rate is recorded automatically every 15 minutes, and sleep is also tracked in 15-minute intervals during the times given in the instructions – if you work unusual shifts, the readings may be off. It lasts about two days between charges; I still charge it every day so I don’t miss any sleep data. With lower brightness, the battery lasts longer. The display is so bright it almost works as a flashlight in the dark. About once a week the button stops responding; a restart fixes it. For the price, I’m happy.

b
b***r
Beautiful

The product is so beautiful – I love the display.