The quick answer.
FindTime Smartwatch S51 (Black / Rubber) is a smartwatch watch with case dimensions 36 mm case width × 10 mm thickness at $158.99. We recommend it for a value-focused buyer who wants a large square screen, phone notifications, activity records and multiple everyday smartwatch tools.
Why it belongs on the shortlist.
The S51 is an all-round phone companion: FindTime lists a 1.91-inch TFT display, 20 sports modes, sleep and activity tracking, notifications, incoming-call alerts, weather, and music and camera controls. Its 280 mAh battery is rated by the brand for 4–7 days of typical use, while the metal-alloy case and several color and strap combinations give it a more watch-like presence than a simple fitness band. We like the broad feature spread, provided buyers treat the health panels as non-medical and check app compatibility first.
A big screen and plenty of everyday tools.
The S51’s 1.91-inch TFT touchscreen is the center of the experience. FindTime pairs it with customizable faces, daily activity and sleep records, 20 sports modes, message and incoming-call alerts, weather, music control and camera control. That breadth gives the watch a clear role as a phone companion for routines and notifications. FindTime does not publish the screen resolution, so we would judge the display by the experience you want rather than the phrase “HD” on the listing.
Check the shape, materials and fit.
FindTime lists a 36 mm case width and 10 mm thickness. The Black / Rubber option is one of five listed color-and-strap combinations, but the page is inconsistent about the strap material: the option selector says Rubber, while the product description calls it TPU leather. FindTime also gives a 265 mm suitable-wrist figure without clearly explaining the measurement. We would confirm the strap material and fit details with the retailer if either is important to you.
A phone companion, with old minimum app requirements.
The S51 connects over Bluetooth 5.0 and uses FindTime’s DeepFit app. The product listing names Android 4.4 and iOS 8.2 as minimum versions, which are old baselines; check the current app-store listing and your phone’s compatibility before ordering. The feature list includes incoming-call and message alerts, not a claim that the watch itself places cellular calls.
Treat the health panels as non-medical.
FindTime lists heart rate, ECG, blood oxygen, blood pressure, glucose, temperature and stress readings. The manufacturer also states that its products are not medical devices, readings are not guaranteed to be accurate and the readings are for reference only. We would buy the S51 for its display, everyday controls and activity features, not for clinical monitoring or health decisions.
Battery, water guidance and the reader code.
The listed 280 mAh battery is rated by FindTime for 4–7 days of typical use and up to 30 days on standby; those are seller estimates, not measured results. FindTime lists IP67 and describes sweat and rain protection, so we would not swim with it. The current US listing was $158.99 on October 21, 2026. Watch Ritual’s supplied code SEBASTIANBASSOL advertises 10% off FindTime, but we have not tested it on this S51 option. The store says sale items cannot be refunded, so confirm the variant, code eligibility and final total before paying.
The details, at a glance.
- Selected variant
- Black / Rubber · variant 40191236014167 · SKU YCK TK10 Black Rubber
- Display
- 1.91-inch TFT touchscreen; resolution not stated
- Case
- 36 mm wide × 10 mm thick, as listed by FindTime
- Battery
- 280 mAh; FindTime estimates 4–7 days of typical use and up to 30 days standby
- Phone connection
- Bluetooth 5.0; FindTime lists DeepFit app compatibility with Android 4.4 and iOS 8.2 or newer
- Everyday tools
- Daily activity and sleep records, 20 sports modes, notifications, incoming-call alerts, weather, camera control and music control
- Water guidance
- IP67 listed; FindTime describes sweat and rain resistance
- Health-data notice
- FindTime says its watches are not medical devices and their readings are for reference only
- Listed price
- $158.99 USD on October 21, 2026; the product page also shows $199.99 as the comparison price
- Reader offer
- SEBASTIANBASSOL · partner-supplied 10% off; not tested on this exact S51 variant
What draws us in
- Large 1.91-inch touchscreen with customizable faces
- 20 sports modes plus activity, sleep and notification features
- Several color and strap combinations at the same listed price
- Supplied SEBASTIANBASSOL code advertises 10% off FindTime
Before you choose
FindTime markets ECG, blood pressure, blood oxygen, glucose and temperature readings, but its own product and return pages say the watch is not a medical device, readings are not guaranteed accurate and they are not grounds for a refund. Do not use it for diagnosis or treatment. The product page labels the selected option Black / Rubber but elsewhere calls the strap TPU leather, so confirm the material and fit you expect. FindTime also lists IP67 and frames it for sweat and rain; we would keep it out of swimming.
Who it suits.
A value-focused buyer who wants a large square screen, phone notifications, activity records and multiple everyday smartwatch tools.
When to choose something else.
Choose a different watch if you need medical-grade readings, swimming use, a clearly specified app ecosystem or a returnable sale item.
Warranty, returns and ownership.
FindTime’s return policy provides a 30-day request window subject to its stated conditions, but it says sale items cannot be refunded. The S51 was listed at a sale price when checked, so review the live return policy before ordering. FindTime lists a one-year warranty on its store pages; confirm the current warranty process and DeepFit app compatibility for your phone.
Closest alternatives.
- FindTime Smartwatch S46 (Black): The S46 is the closest reviewed FindTime smartwatch alternative, with a round 1.3-inch display and a code-tested Black variant. Choose by screen shape and the features you will use; the health readings on either model are not medical data.
- FindTime Digital Watch for Men 50M Waterproof Sport Outdoor Tactical Watch (YCK 2125, Black): A much simpler digital watch if you want a low-cost time display, alarm and stopwatch without a smartwatch app or health-reading menu.
Think beyond the diameter.
The published case dimensions are 36 mm case width × 10 mm thickness; use that complete footprint and thickness to judge fit. Check the case width and strap fit and compare the proportions with a watch you already enjoy wearing.
FindTime partner code and offer terms. Our supplied code is SEBASTIANBASSOL for 10% off. Check the exact model and variant at the store, then confirm eligibility and the final total at checkout.
Where to buy.
Specifications and product photography: FindTime Smartwatch S51 product page (checked October 21, 2026). Find Smartwatch S51 (Black / Rubber) at FindTime through our partner link and search for the selected option there. How we choose.
A few good questions.
What is the discount code for the FindTime Smartwatch S51 (Black / Rubber)?
The FindTime discount code is SEBASTIANBASSOL for 10% off at findtimewatch.com. We have not tested it on this exact model, so confirm the saving in your order summary. Every code and tested price: https://watchritual.com/promo/findtime
How much is the FindTime Smartwatch S51 (Black / Rubber)?
FindTime listed the Black / Rubber S51 at $158.99 USD on October 21, 2026, with $199.99 shown as the comparison price. The supplied code SEBASTIANBASSOL advertises 10% off, but we have not tested it on this exact variant; confirm the checkout total.
Does code SEBASTIANBASSOL work on the FindTime Smartwatch S51 (Black / Rubber)?
FindTime’s supplied partner offer is 10% off with SEBASTIANBASSOL. We have tested the code on other specific FindTime products, but not this S51 Black / Rubber variant. Enter it in the order summary and confirm the saving before paying.
Can I use the FindTime Smartwatch S51 (Black / Rubber) for medical readings?
No. FindTime says its watches are not medical devices and the readings are for reference only. It says the readings are not guaranteed to be accurate; do not use them for diagnosis or treatment.
How long does the FindTime Smartwatch S51 (Black / Rubber) battery last?
FindTime lists a 280 mAh battery and estimates 4–7 days of typical use or up to 30 days on standby. Actual battery life depends on settings, usage and connection conditions.
Can I swim with the FindTime Smartwatch S51 (Black / Rubber)?
FindTime lists IP67 and describes sweat and rain protection. We would not choose it for swimming or other prolonged water use.
Can I return the FindTime Smartwatch S51 (Black / Rubber) sale item?
FindTime’s return policy says sale items cannot be refunded. Check the current terms and the final item price before ordering.
