Smart Ring

Hama "One" Smart Ring, Tracker, Sleep, Pulse, Notification, 55 mm, silver

00178649

Unobtrusive wearable with many talents: smart ring with tracker functions, from sleep and sport to vibration notifications - for monitoring and optimising physical functions for a healthy day-to-day life; lightweight, convenient and intuitive to use

Shade of colour

Matt Black Silvery-shiny
Price on demand

"One" Smart Ring. For the inner values.

Strikingly unobtrusive – the Hama "One" Smart Ring keeps you up to date. You decide when the smart ring vibrates: by adjusting your preferences in the "Hama Active" app and taking into account mobile phone settings such as "Do Not Disturb", "Bedtime" and so on. This makes it easier for you to focus on what really matters in real life – without your phone, that attention-grabbing distraction, sitting on your desk or bedside table.

Vibration notification feature

When a smart watch alerts you, it takes a great deal of willpower to resist the urge to glance at the watch’s display. But do you really have to know everything straight away? The notification via smart ring vibration makes it easier for you to stay focused and only check your mobile afterwards. Or are you waiting for a call but don’t want to put your mobile on loud? Cinema, a meeting or a romantic meal: you’re in the know and can act when the opportunity arises – and you don’t have to keep checking. That way, you’re always in the loop, but only you get to know about it.

Just feel your notifications without looking at your phone. For example, you can receive notifications via your smart ring – of course, all fully customisable:

Contacts

  • Incoming calls
  • Messenger
  • Appointment reminders

Abnormal health readings

  • High or low heart rate
  • Low blood oxygen saturation (SpO2)
  • Elevated temperature (fever)

Reminders

  • Take medicine
  • Drink enough water
  • Alarm clock, alarm, timer function

Man touching his shoulder; smart ring visible on his finger; outdoors; sleek design; high-quality wearable accessory

The design: elegant, timeless, subtly clever

However much technology the Hama "One" Smart Ring may contain, its exterior has an elegantly understated look. A sturdy stainless steel ring with no frills – perfect for any everyday situation, from relaxed to stressful to health-conscious and active. The high-quality matt finish in black or glossy silver complements your outfit for any occasion.

The clue: the smart ring actually goes wonderfully with a deliberately analogue style, which would clash with a smart watch. With this discreet accessory, you’ll be fully up to date without it being obvious – even on occasions when you wouldn’t want to be holding your mobile anyway, except to take photos.

Monitoring health. Without any self-imposed pressure.

You spend less time on your mobile, but gain more insights. Because the smart ring is more than just a sleep tracker and records a whole host of signals that your body sends out. Whilst you don’t even have to think about it, the ring monitors your vital signs, keeps an eye on your condition, measures your body temperature, heart rate and even your blood oxygen saturation, tracks the quality of your sleep and assesses how well you’ve recovered. Heart rate variability (HRV) allows you to optimise your training sessions in a targeted way and also set reminders for things that matter to you: from appointments to reminders to staying hydrated. You can hardly see the smart ring, but it knows a lot – and simply takes a lot of the thinking off your hands.

The advantage over a fitness watch: the smart health ring alerts you if something is wrong – for example, if your body temperature is particularly high or your pulse is very low. But you don’t have your values constantly in front of you, if only because there isn’t always some sort of display lighting up and tempting you to swipe it. A daily health report also allows you to look back on your day in the evening at your leisure and then plan ahead for the next day, if you wish.

Feeling unwell, fever? The smart ring measures your temperature

A low or elevated body temperature is one of the most important measurable bodily signals. Minor fluctuations of up to 1 °C are perfectly normal and are part of the natural daily cycle. Significant, persistent deviations, on the other hand, are signs of health-related causes – e.g. infections, inflammatory diseases or circulatory weakness – and with the Hama "One" Smart Ring, they can possibly be detected earlier. The health ring records your temperature throughout the day and up to 6 times per hour. In the "Hama Active" smart ring app, you can set the intervals yourself, and you’ll also find a full summary there – all without a subscription.

At your best: smart ring for sport and fitness

The Hama "One" Smart Ring is a truly smart companion when you’re doing sport, too. Among other things, the fitness ring tracks your steps, exercise sessions and speed, calories burnt and your heart rate over time. Using this data, the health ring calculates your fitness status, recovery score and performance history. That way, it won’t distract you and you can stay fully focused. What’s more, afterwards you’ll still have a complete overview and be able to see your progress – not just from the burning muscles, but also neatly recorded in the app.

A person tying their running shoes on a running track, with a smart ring visible on their finger; fitness, sport, modern wearable design

Your sport, your achievements

The choice is yours: you can train specifically in as many as 120 sports using the "One" smart ring on your finger. For 6 sports modes, the mobile phone doesn’t even need to be connected directly: when running outdoors, you can go completely out of mobile phone range; the fitness ring will store the data temporarily and synchronise it with your smartphone once your workout is finished. Whichever sport you choose, the basic principle remains the same – whether it’s running, swimming or yoga, from aqua fitness to Zumba: to track your sport, simply select the activity in the app and start it, put your mobile away and get going. After all, you don’t need your mobile phone whilst you’re training anyway.

Suitable for swimming? Yes, suitable for swimming.

You can practically always keep the Hama "One" Smart Ring on – even when you go for a swim, have a shower or take a dip in the lake to cool off, you don’t need to take the sturdy ring off. Thanks to IP68 water resistance and 5 ATM, you can easily take it into the water, go sailing and snorkelling, and do plenty more besides. When you get out of the water and the ring is back within Bluetooth range of your mobile, they’ll connect to each other, you’ll start receiving vibration notifications again, and you can easily synchronise your health data in the app. This means that the unassuming smart ring replaces the smart watch or other bulkier gadgets, offering discreet tracking without a fitness tracker for both men and women. That’s innovation in action – and built to last.

Small ring, powerful battery

Lasts for days without charging: Hama’s small, smart ring, the "One", has an impressive battery life of 4 days. You can check exactly how long the battery will last in the "Hama Active" smart ring app on your mobile. Your smart wearable will also alert you in good time when the battery is running low – via a notification (vibration) and a red light on the inside of the ring. You don’t even have to wait long whilst it’s charging: within 2 hours, the Pulse ring is back to 100 per cent, conveniently placed in the charging case. It’s also brilliant for a quick break – just take off the smart ring when you pop into the sauna. What's more: the small charging case has its own power bank, which can fully recharge the smart ring battery five times. This means you can get a total of 4 + 20 days’ battery life whilst on the go before the charging case itself needs recharging.

How to find your ring size

If you’re not yet sure what the perfect size is for your Hama smart ring, you can easily find out with our tips. To make things as easy as possible for you, we’ve put all the information together in our ring size guide – including four ways in which you can measure and calculate your finger size quickly and easily. Whether you’re using the inner circumference, diameter or US size as a guide: You can find the overview here.

Ring size (US) Finger circumference Inner diameter
7 ⟷ 55,00 mm Ø 17,50 mm
8 ⟷ 57,00 mm Ø 18,20 mm
9 ⟷ 60,00 mm Ø 19,10 mm
10 ⟷ 63,00 mm Ø 20,10 mm
11 ⟷ 65,00 mm Ø 20,70 mm
12 ⟷ 68,00 mm Ø 21,70 mm
Quality based on German standards
Quality based on German standards
From the initial sample to series maturity: our products undergo strict and comprehensive quality controls, managed and carried out in Germany. This enables us to guarantee compliance with all specifications, guidelines and standards – and satisfy the strictest demands.

Highlights

Smart ring with notification

Unobtrusively up to date: vibrations indicate incoming calls, messenger apps, reminders, wake-up calls or unusual readings – settings are customisable

Intuitive smart ring app

Easy to use: the "Hama Active" smart ring app provides a quick overview of, for example, health data and sleep quality — data that brings clarity

Quality assurance-tested app

This is an app you can rely on: "Hama Active" is quality assurance-tested and every function has been extensively checked in Germany

Minimalist, timeless design

Elegant look, robust stainless steel: elegant smart ring in silver with a high-quality shiny finish - also fits the deliberately analogue style without a smart watch, perfect for everyday wear and sports

Sleep ring with analysis

Smart ring with sleep measurement: monitors light and deep sleep, REM (dream sleep) and waking phases - with sleep quality assessment

Heart rate, SpO2, VO2max, heart rate variability, steps

Pulse ring with many measured values: including heart rate (active, resting, sleep), blood oxygen, max. oxygen uptake, heart rate variability, pedometer, calorie consumption

Calculation of training readiness

Understand your body, train better: sleep quality, heart rate variability, blood oxygen, temperature and stress form the recovery score - better plan, analyse and optimise work, training and recovery

Sport types to choose from

Strength training, tennis or yoga: choose from 120 types of sport and obtain an analysis based on your choice

Measures the temperature

Recognise fever earlier: the fitness ring measures skin temperature and provides early indications of an elevated temperature

Water protection to IP68 and 5 ATM

Whether jogging in the rain, showering or swimming in the lake: the smart ring is water-resistant to IP68 and 5 ATM and is suitable for many activities in rain or snow

Relaxed charging in the charging case

Even the storage is smart: conveniently recharge the smart ring via the magnetic charging tray - to 100 per cent for up to 4 days’ run time in under 2 hours

Technical Specs
Design (Colour, Pattern, Motif, Series)
Colour Silver
Shade of colour Silvery-shiny
Connectivity (Connection)
Connection Bluetooth
Electrospecific Properties
Bluetooth Version 5.4
Physical Properties
IP protection class IP68 (protection against dust entry and permanent immersion)
Material Stainless Steel
Measuring Function Blood oxygen/Calorie burning/Distance/Heart rate/Heart rate at rest/Heart rates variability (HRV)/Pedometer/Sleep/Sleep score and stages of sleep/Stress/Temperature/Training time
Water protection according to ISO 22810: 2010 5 ATM
Size & Weight
Inner Diameter 17.5 mm
Size US 7; 55 mm Inner Circumference
Weight 4 g
Width 7 mm
Energy
Battery Capacity 11 mAh
Battery Type Lithium Polymer Battery
Charging Method Contact
Field of Application
Compatible Platforms (via App) Apple Health/Health Connect/Strava
EU Data Act - personal data
Maximum data length (personal data) 836 KB
More product information
  • Unobtrusive wearable with many talents: smart ring with tracker functions, from sleep and sport to vibration notifications - for monitoring and optimising physical functions for a healthy day-to-day life; lightweight, convenient and intuitive to use
  • Notifications: smart ring vibrates with calls, notifications and messages about health parameters - takes into account mobile phone settings relating to do not disturb mode, etc., can also be deactivated
  • Optimised measuring intervals: health ring measures heart rate and body temperature up to 6 times per hour - with blood oxygen saturation measured every 30 minutes
  • Warns if the health parameters deviate significantly, e.g. significantly high or low heart rates or blood oxygen saturations
  • Automatically detects steps and sleep - for sporting activities: activate smart ring tracking via the app
  • Training log, e.g. with heart rate, duration, calorie consumption and speed
  • Smart ring without subscription: no hidden costs, data analysis is simply included
  • Reminders, e.g. for appointments, cycles, drinking enough water, medications
  • Be gently woken up with vibrations
  • Tracks offline: synchronises data with the app as soon as it is connected again via Bluetooth
  • Data is stored exclusively on German servers
  • App-compatible: get even more analyses with Health Connect and Apple Health
  • Find function: find your smart ring again faster thanks to the luminous signal
  • Warns when the battery level is low (< 5%): lights up red
  • 5 extra charges included: thanks to the charging case, the battery capacity lasts up to 20 days
What's in the Box
  • 1 "One" smart ring
  • 1 charging box
  • 1 USB charging cable
  • 1 quick reference guide
  • 1 x warning and safety instructions
System Requirements
  • From Android 8.0/iOS 12.0
Note for Consumers

Only suitable for fresh water bodies of water. Avoid additives such as chlorine and salt.
Do not wear in saunas or steam baths.
After wearing for a long period / swimming, clean with a slightly damp cloth.
Charge the charging case via USB-C (charger and cable available separately).

Transparency statement in accordance with the EU Data Act
  • EU Data Act
    Product is subject to the EU Data Act: Yes

    EU Data Act - personal data
    Collection of personal data: Yes
    Data is stored continuously and in real time on a person-by-person basis: Yes
    Location of personal data: Client
    Maximum data length (personal data): 836 KB
    Personal data format: HEX
    Personal data management: App
    Retention period for personal data: 365 Tage

    EU Data Act - functional/informative data
    Functional/informative data format: HEX
    Functional/informative data management: App
    Functional/informative data retention period: 365 Tage
    Functional/informative data storage cycle: continuous and in real time: Yes
    Functional/informative data storage location: Client
    Max. data length: functional/informative: 836 KB
Manufacturer information Hama GmbH & Co KG, 86652, Monheim, https://hama.com

FAQs

How do I find the right size for my smart ring?
The Hama "One" smart ring is available in six sizes and two colours. To help you choose the perfect fit, simply use our ring guide – it features comparison tables and handy tips on how to find your size, even if you don’t know it yet.
Does the smartphone always have to be connected to the smart ring?
An active connection to your smartphone is required for activity tracking and the notification function. However, the Hama "One" smart ring can also record all other background metrics, such as steps and heart rate, independently. The data can be synchronised in the app afterwards, as soon as the connection is restored. So, for the time being, using the smart ring without having your mobile phone in your pocket also works; however, data transmission requires an active Bluetooth connection.
What are the requirements for pairing the smart ring with my smartphone?
Pairing: Establish a Bluetooth connection and add the device, naming it if necessary. For personalised notifications, detailed reports and more, you’ll need the free “Hama Active” app. Tip: Remember to grant the app the necessary permissions. If required, you can share data from the Hama Active app with other apps, such as Strava, or – on Android devices – via the Health Connect app, and on iPhones via Apple Health.
What notifications can I receive on the smart ring?
In the "Hama Active" app, you can customise which notifications are forwarded to the smart ring. Smartphone modes such as "Do Not Disturb" can also be synchronised. You can also choose specific apps, services and contacts that are allowed to trigger a vibration notification on the smart ring.
What can the Hama "One" smart ring measure?
The Hama "One" smart ring combines four sensors in a single ring: heart rate, blood oxygen saturation (SpO2), body temperature and an accelerometer for measuring movement and speed. These readings enable health-related measurements and the recording of training data for a wide range of sports.
What can a smart ring do that a smart watch can’t?
A wearable like the Hama "One" smart ring impresses above all with its discreet, jewellery-like slim design – it goes unnoticed even when worn continuously. Thanks to direct skin contact with the finger, sensors such as those for heart rate, SpO₂ and body temperature can take particularly accurate and continuous readings. If you’d prefer not to have a display, a fitness ring designed for everyday use will distract you far less, whilst still allowing you to rely on its tracking and notification features.
How do I look after my smart ring properly?
After the ring has come into contact with water, it is advisable to wipe it with a slightly damp cloth. For safe storage, simply place your smart accessory in the supplied case with charging function. In everyday life and when doing sport, the Hama "One" smart ring can be worn just like a normal stainless steel ring.

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