Updated October 14, 2026 · ThriveCue Editorial Team
METZ vs Ultrahuman Amazon
METZ vs Ultrahuman Amazon: the differences
| Compare |  METZ |  Ultrahuman Amazon |
|---|---|---|
| Price from | €99.90Lower | €379 |
| Battery life | 10 days | 15 daysHigher |
| Warranty | 2 yearsHigher | 1 year |
| Markets | AT, BE, BG, HR, CZ, DK, EE, FI, FR, DE, GR, HU, IS, IE, IT, LV, LT, LU, NL, PL, PT, RO, SK, SI, ES, SE | IN, AE, US, GB, BE, CZ, DK, FR, DE, IE, IT, NL, PL, ES, BG, HR, EE, GR, HU, LV, LT, LU, MT, RO, SK, SI, AT, PT, SE |
| Membership per month | Not confirmed | €0 |
Same on both: Platforms (iOS, Android), Water resistance (m) (100).
We earn a commission when you sign up through links on this site. Partner status can affect where a brand appears in our rankings.
Key differences
- Ultrahuman Amazon scores higher overall: 9.1 vs 9.0.
- Price from is lower at METZ: €99.90 vs €379.
- Battery life is higher at Ultrahuman Amazon: 15 days vs 10 days.
- Warranty is higher at METZ: 2 years vs 1 year.
- Support channels: only Ultrahuman Amazon offers Chat, Community.
- Ultrahuman Amazon is available in 3 more countries.
- Products: only METZ offers Smartwatch.
- Health sensors: only Ultrahuman Amazon offers Hrv.
- Markets: only METZ offers FI, IS.
- Markets: only Ultrahuman Amazon offers IN, AE, US.
Our verdict on each
METZ
METZ suits European buyers who want a smart ring and a smartwatch from one young brand, with the METZ entry product at €99.90 and a 2 years warranty behind it. The trade-off is battery: the ring runs 10 days, below the smart ring field median, so value buyers gain more here than endurance buyers.
Ultrahuman Amazon
Ultrahuman suits readers who want sleep and recovery readings from a ring and would rather not pay a monthly fee after buying it. The ring costs €379 once, tracks sleep, heart rate, blood oxygen, skin temperature and HRV, and works with iOS and Android.
Score breakdown
| Area | METZ | Ultrahuman Amazon |
|---|---|---|
| Cost | 9.2HigherEntry hardware at €99.90 sits under both category medians: €99.90 and €174.52. | 8.7The cost part scores 8.7. The Ultrahuman ring is an upfront payment of €379 with a €0 monthly membership, so nothing stacks up each month. |
| Offer | 9.3A smart ring and smartwatch range, apps on iOS and Android and water resistance to 100 m in a small, focused catalogue. | 9.4HigherThe offer part scores 9.4, pairing 15 days of battery with 100 metres of water resistance and 1 year of cover. |
| Trust | 8.0UAB Hiperfarma in LT, founded 2023, with support on email, phone and help centre. | Not confirmed |
Where each is licensed and available
| Country | METZ | Ultrahuman Amazon |
|---|---|---|
| Headquarters | Lithuania | India |
Available in 24 countries for both. Additional countries for METZ: 2. Additional countries for Ultrahuman Amazon: 5.
What we checked
METZ
- metzcare.com: 12 facts, checked September 30, 2026
Ultrahuman Amazon
- ultrahuman.com: 12 facts, checked September 30, 2026
How they place
| Ranking | METZ | Ultrahuman Amazon |
|---|---|---|
| Smart rings | 4 of 14 | 1 of 14 |
Every fact side by side
| Fact | METZ | Ultrahuman Amazon |
|---|---|---|
| Products | Smart ring, SmartwatchCovers more | Smart ring |
| Health sensors | Heart rate, Spo2, Skin temperature, Sleep | Heart rate, Spo2, Skin temperature, Hrv, SleepCovers more |
| Legal entity | UAB Hiperfarma | Ultrahuman Healthcare Private Limited |
| Headquarters | Lithuania | India |
| Founded | 2023 | Not confirmed |
| Support channels | Email, Phone, Help centre | Email, Chat, Phone, Help centre, CommunityCovers more |
Where each stands against the rest
| Fact | METZ | Ultrahuman Amazon | Median |
|---|---|---|---|
| Price from | €99.90below the median | €379highest quarter | €199 |
| Membership per month | Not confirmed | €0at the median | €0 |
| Battery life | 10 daysbelow the median | 15 daysabove the median | 14 days |
| Water resistance (m) | 100above the median | 100above the median | 50 |
| Warranty | 2 yearsabove the median | 1 yearat the median | 1 year |
Median across 27 listed brands.
Pros and cons
METZ
Pros
- The range covers smart ring and smartwatch, so a ring and a watch come from one seller rather than two.
- The ring's heart rate, spo2 and skin temperature cover heart rate, blood oxygen, skin temperature and sleep, and the apps run on iOS and Android.
- Support runs on email, phone and help centre, so email, phone and a help centre are all available routes.
Cons
- Battery life of 10 days falls short of the smart ring median 14 and of the smartwatch median 11.5.
- The catalogue stops at smart ring and smartwatch, while Amazfit lists smartwatch, fitness tracker and smart ring, so a chest strap and a smart scale sit outside the METZ range.
- Shipping reaches AT, BE and BG, and that list does not extend past those markets.
Ultrahuman Amazon
Pros
- The monthly membership on the Ultrahuman plan is €0, so the ring is a single purchase rather than a subscription you keep paying for.
- Support runs on email, chat and phone, which is wider than an email address alone.
- The app runs on iOS and Android, so the system on your phone does not narrow your choice.
Cons
- The Ultrahuman entry price of €379 sits above Oura at €265.30, so the upfront spend is the biggest reason to pause.
- Battery life of 15 days ranks 7 of 23, so recharging stays part of the weekly habit.
- Warranty cover runs 1 year, which is short for hardware worn every night and never taken off.
Who each suits
METZ
Who it suits
- Value buyers inside METZ's shipping markets, who get a ring and a watch starting at €99.90 with a 2 years warranty behind them.
- People who want phone and help centre support rather than email alone, since support runs on email, phone and help centre.
- Swimmers and showerers, since the ring is water resistant to 100 m and reads heart rate, blood oxygen, skin temperature and sleep.
Who should look elsewhere
- Readers who want fitness trackers as well as watches, since Runmefit lists smartwatch and fitness tracker and the METZ range is smart ring and smartwatch.
- Shoppers who want a chest strap or a smart scale, since Amazfit lists smartwatch, fitness tracker and smart ring and those types are not in the METZ range.
- Watch-only buyers, since Oukitel's smartwatch is a watch line and METZ splits smart ring and smartwatch between a ring and a watch.
Ultrahuman Amazon
Who it suits
- Readers who want sleep, heart rate and HRV data from a ring with no recurring membership charge.
- Swimmers and gym users, since water resistance reaches 100 metres.
- People who want to talk to someone when sizing or delivery goes wrong, since support runs on email, chat and phone.
Who should look elsewhere
- Oura buyers on a tight budget, because the Ultrahuman entry price of €379 is higher than €265.30.
- Amazfit shoppers who want more than one kind of device, since Ultrahuman covers smart ring alone while Amazfit lists smartwatch, fitness tracker and smart ring.
- Samsung shoppers who want a watch alongside a ring, since Samsung lists smartwatch and smart ring.
Current offers
Ultrahuman Amazon
Current offer
Free trial
30-night risk-free trial on Ring AIR: 30 nights
Free returns; ring must be returned with all original accessories in original packaging within 30 days of delivery; page states no end date
Source, checked September 30, 2026
Country by country
| Country | METZ | Ultrahuman Amazon |
|---|---|---|
| Finland | Yes | No |
| Iceland | Yes | No |
| India | No | Yes |
| Malta | No | Yes |
| United Arab Emirates | No | Yes |
| United Kingdom | No | Yes |
| United States | No | Yes |
| Austria | Yes | Yes |
8 of 31 countries where either is available.
Questions about each
METZ
What does METZ cost to get started?+
The METZ entry product is €99.90, a hardware price set against the smartwatches and fitness trackers median of €99.90 and the smart rings median of €174.52. Buyers working to a budget get entry level gear here for less than the typical price in either category.
How long does the METZ ring last on a charge?+
The listed ring runs 10 days, under the smart ring median of 14 and under the smartwatch median of 11.5. METZ ranks 13 of 23 brands on battery days, so plan on regular charging rather than a set and forget device.
Ultrahuman Amazon
What does the Ultrahuman ring cost to buy?+
The Ultrahuman ring starts at €379. That is the entry price for the hardware and it is paid as a single payment rather than in instalments. On top of it, the monthly membership on the Ultrahuman plan is €0, so the number you start with is close to the number you pay.
Is there a monthly fee after I buy the ring?+
No recurring charge. The monthly membership on the Ultrahuman plan is €0, so once the ring is paid for at €379 there is no standing subscription to cancel. Readers who dislike watching a payment leave their account every month for wearable data can buy it and set it aside.