Point your phone at the sky, tap an object, and walk away while your telescope stacks images automatically. Smart telescopes remove every barrier between you and astrophotography — no eyepieces, no polar alignment, no processing software. This guide covers the three most popular smart telescopes available from UK retailers right now: the ZWO Seestar S50, DwarfLab Dwarf 3, and DwarfLab Dwarf Mini.
A smart telescope is an all-in-one astrophotography device: optics, camera, mount, and processing computer built into a single compact unit, controlled entirely via a smartphone app. There are no eyepieces. You don't look through it — you watch your phone screen as the telescope automatically locates targets, tracks them as the Earth rotates, and stacks multiple exposures in real time to reveal detail that a single shot can't capture.
The appeal is straightforward. A traditional astrophotography setup — telescope, equatorial mount, guide camera, imaging camera, laptop — can cost over £2,000 and takes hours to learn. A smart telescope costs a fraction of that, fits in a backpack, and produces results on your very first night out. The trade-off is that you have less control over the process, and the images have a different character to what an experienced imager produces with dedicated equipment.
Smart telescopes aren't for everyone. If you enjoy the technical challenge of traditional stargazing or astrophotography, or if you want maximum image quality above all else, they're probably not the right tool. But if you want to photograph the Orion Nebula or Andromeda Galaxy with minimal fuss — and you want to do it tonight — nothing else comes close for the money.
| Telescope | Aperture | Light Pollution Filter | Main Sensor | Price | Best For |
|---|---|---|---|---|---|
| ZWO Seestar S50 | 50mm APO | Built-in dual-band | Sony IMX462 (2.1MP) | £539 | Top Pick |
| DwarfLab Dwarf 3 | 50mm | ✗ No filter | Sony IMX678 (8.3MP) | £465 | Dual-Lens Pick |
| DwarfLab Dwarf Mini | 50mm | ✗ No filter | Sony IMX462 (2.1MP) | £379 | Entry-Level Pick |
The Seestar S50 is the most widely reviewed smart telescope on the market and the one most UK buyers should consider first. Its standout feature is a built-in dual-band narrowband filter — covering H-alpha and OIII wavelengths — that's permanently inside the optical path and switchable via the app. For anyone imaging from a light-polluted back garden (which describes most of the UK), this filter is transformative. Nebulae that would be washed out under orange skies reveal gas structure, contrast, and colour that a broadband telescope simply can't achieve without a separate filter and adapter.
ZWO are a well-established name in astronomy — they've been making dedicated astrophotography cameras for years, and that heritage shows in the S50's build quality, app, and firmware support. Regular updates have added mosaic mode (for targets wider than the field of view), equatorial mode (to reduce field rotation), and enhanced stacking algorithms since launch. The community around the S50 is large, which means when you have a question, someone has almost certainly already answered it.
The S50 ships as a proper kit: carbon fibre tripod, solar filter, carry case, dew heater, and 64GB of internal storage all included. At £539 you're getting significantly more in the box than either DwarfLab model provides. The solar filter turns it into a capable daytime instrument too — sunspot imaging during the current solar maximum is genuinely rewarding.
The Seestar S50 is our top pick for most UK buyers. The built-in dual-band filter is a genuine competitive advantage for nebula imaging from light-polluted locations — and that's the majority of people reading this. The complete kit (tripod, case, solar filter) also makes it the best value at the point of purchase. If you're starting from scratch and you want one product that covers deep-sky, lunar, and solar observing, this is it.
The Dwarf 3 is DwarfLab's flagship smart telescope and the one most serious beginners should consider. Its defining feature — and the reason it costs £86 more than the Dwarf Mini — is a dual-lens system. A 50mm f/5 telephoto lens handles deep-sky and planetary targets, while a wide-angle 13.5mm f/1.75 lens captures a broad all-sky view simultaneously. Both shoot at the same time, so you can be imaging a nebula through the telephoto while the wide-angle is recording the sky for sky quality logging or all-sky timelapse.
The main sensor is a Sony IMX678 — an 8.3 megapixel backside-illuminated sensor with excellent low-light performance. In practice, this means the Dwarf 3 pulls out faint detail in objects like the Orion Nebula, Andromeda Galaxy, and the Pleiades in ways that the Dwarf Mini's 2.1MP sensor can't quite match. The detail resolution is noticeably better when you push to print size or zoom in.
Like all smart telescopes, the Dwarf 3 is controlled entirely through the DWARF app on your phone. You tap a target on the star map, the telescope slews to it, refines its pointing, and begins stacking exposures. As frames accumulate, you watch detail emerge in real time on your screen. Most popular deep-sky targets are reachable within five minutes of setting up. The built-in 9-hour battery means a full night's observing without a power cable.
The Dwarf 3 is the pick if you specifically want the highest-resolution sensor in the class or the dual-lens wide-angle capability. Its Sony IMX678 (8.3MP) outresolves both the S50 and the Dwarf Mini, and simultaneous wide-angle + telephoto capture is unique to the DwarfLab range. The S50 edges it for light-polluted nebula imaging, but for raw sensor quality and dual-lens flexibility the Dwarf 3 stands alone.
The Dwarf Mini is DwarfLab's entry-level smart telescope — smaller, lighter, and £86 cheaper than the Dwarf 3. It uses the same core optics (50mm aperture, 250mm focal length, f/5) but has a single Sony IMX462 sensor rather than the Dwarf 3's dual-lens system and higher-resolution IMX678.
The IMX462 is a smaller, lower-resolution sensor (2.1MP vs 8.3MP), which means images have less fine detail and smaller maximum print sizes. For viewing on a phone screen or sharing on social media, the difference is minor. If you're the kind of person who zooms in on every pixel or wants to produce wall-art prints, the Dwarf 3's sensor advantage becomes meaningful.
Where the Dwarf Mini wins is portability and price. It's the more compact of the two, making it the natural choice for dark sky trips where you're packing light, or for a first smart telescope where you want to test the concept without paying full price. The DWARF app experience is identical to the Dwarf 3 — same interface, same auto-stacking, same target library.
The right first smart telescope for most people. If you want to see what smart telescopes can do, or if portability matters more than maximum image quality, the Dwarf Mini is the more sensible starting point. You can always upgrade to the Dwarf 3 later — but many Dwarf Mini owners find they never need to.
You image from a light-polluted location (most UK towns and cities) and nebulae are your primary target. The built-in H-alpha + OIII dual-band filter is a genuine competitive advantage that no DwarfLab model matches. It also ships with the most complete kit — tripod, carry case, and solar filter in the box — making it the best value at the point of purchase. If you're buying just one smart telescope and you live anywhere with orange skies, this is the one.
You want the highest-resolution sensor in the class (8.3MP Sony IMX678 vs 2.1MP on both the S50 and Dwarf Mini), or if the dual-lens system specifically appeals. Being able to run a wide-angle all-sky timelapse simultaneously while imaging a deep-sky target through the telephoto is something only the Dwarf 3 offers — and it's genuinely useful for comet hunts, sky quality logging, and context shots. The Dwarf 3 also has a longer battery life (~9 hours vs ~6 hours on the S50).
You're buying your first smart telescope and want to test the concept before committing to a higher price. The Dwarf Mini gives you the full smart telescope experience — app, auto-stacking, real nebula images on your phone — for the lowest outlay. It's also the most portable of the three, making it the natural choice for dark-sky trips where pack weight matters.
Both the Dwarf 3 and Dwarf Mini include everything you need to start imaging out of the box. There are two accessories worth considering as add-ons:
A compact aluminium tripod specifically designed for the Dwarf 3 and Dwarf Mini. 5-section legs adjust from 25cm to 53cm, with a fluid head for smooth positioning. At 790g and 25cm folded, it's small enough to carry alongside either telescope. Folds to a very compact size for travel. Note from early buyers: make sure to lock each leg segment individually — twisting just the foot won't lock the upper sections.
£73 at FLO View at FLO →A 3D-printed Bahtinov focusing mask that attaches to the Dwarf 3's lens housing via concealed rotating magnets. A Bahtinov mask creates a distinctive diffraction pattern that makes precise focus visually obvious — useful when you want to manually verify focus rather than trusting the autofocus. Dwarf 3-specific; not compatible with the Dwarf Mini.
£22 at FLO View at FLO →