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Reflex Active RA-SP-300S-05 Spectra 300 S Lite AMOLED Navy Smartwatch - W47364
Ref. RA-SP-300S-05
At 36mm and 10mm deep, the Spectra 300 S Lite sits closer to a fitness band than a traditional watch on the wrist — light enough that it largely disappears during a run or a gym session, round-cased where most smartwatches at this size go rectangular. The AMOLED display gives the black dial genuine depth and contrast in most lighting conditions, and the crown wheel on the side lets you scroll menus without smearing the screen. The silicone strap fastens with a standard tang buckle, which means fit adjustment is straightforward and the strap can be swapped without tools. GPS, heart rate and step tracking cover the core activity bases, and the always-on display option removes the need to flick your wrist each time you want to check the time — a small thing that makes a consistent difference across a long day.
- Reference
- RA-SP-300S-05
- Brand
- Reflex Active
- Case size
- 36mm
- Case thickness
- 10mm
- Case material
- Aluminium
- Case shape
- Round
- Dial
- Black
- Crystal
- Mineral
- Movement
- Quartz
- Functions
- GMT, Bluetooth, Step counter, Heart rate, GPS, Heart rate monitor
- Water resistance
- 68m
- Bracelet / strap
- Silicone strap
- Strap colour
- Blue
- Clasp
- Buckle
- Lume
- Luminous
- Retailer
- F.Hinds
Learn more about Reflex Active
Reflex Active is a British brand launched to put smartwatch features at a price a parent would consider for a teenager, and it has stayed at that end of the market deliberately.
The proposition is straightforward: heart-rate and activity tracking, notifications, sleep monitoring and interchangeable coloured straps, in bright cases with animated watch faces, generally for under a hundred pounds.
That places it against fitness bands rather than against watchmaking, and the comparison it invites is with devices costing several times as much. Battery life and app polish are where the price shows; the core tracking does what it claims.
The range is broad and changes quickly, with series numbers denoting feature sets rather than model families, and gift sets pairing a watch with spare straps.
It is a first smartwatch rather than a watch in the traditional sense, and it is priced and designed with exactly that buyer in mind.
- 2018
- Launched in the UK as an affordable smartwatch brand.
- 2019
- Heart-rate and sleep tracking added across the range.
- 2021
- Interchangeable strap sets become standard.
- 2022
- Distribution widens through British jewellers.
- 2024
- The series numbering system organises the collection.
Also in 3 collections
This watch appears in Under 37mm (1,024), Under £100 (312) and GMT & Travel (128).
Manufacturer’s guarantee
What the specifications mean
Strengths
- 36mm suits most wrists
- Luminous hands and markers for low light
- Second time zone for travelling
Worth knowing
- 68m suits rain and handwashing, not swimming
Compare alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | RA-SP-300S-05 |  40534 |  RY21944A |
|---|---|---|---|
| Price | £50 | £50 | £45 |
| Case size | 36mm | 34mm | 35mm |
| Water resistance | 68m | 50m | 30m |
| Movement | Quartz | Quartz | Quartz |
| Strap | Silicone strap | Stainless steel bracelet | Leather strap |
| This watch |
|
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Showering yes, swimming no. 68m covers splashes and brief immersion, but a swimming stroke generates well above the pressure that figure describes.
Will the glass scratch?
It can, over time. Mineral glass handles daily wear but will pick up fine scratches that sapphire would not.
Does it need a battery?
Yes. It is quartz, so expect a battery change every two to three years at a jeweller.
Is it a men's or women's watch?
Listed as unisex, and at this size it suits any wrist that takes the dimensions.
Cheapest place to buy
F.Hinds is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
Who are F.Hinds?
F.Hinds has been run by the same family since 1856 and is now in its fifth generation, with more than 115 shops across England and Wales. They are a member of the Responsible Jewellery Council and an Authorised Diamond Dealer.
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