Compact Binoculars

What makes binoculars compact?

There is no official definition, but in the shops and in reviews a compact binocular usually means objective lenses of about 20mm to 28mm, a weight of around 250g to 400g and a body that folds down to roughly the size of a phone and a half. The two numbers in the name tell you most of what you need: in 8x25, the 8 is the magnification and the 25 is the width of each front lens in millimetres. Divide the second number by the first and you get the exit pupil, the beam of light that reaches your eye. An 8x25 gives 3.1mm, a 10x25 gives 2.5mm and an 8x22 gives 2.75mm.

Above 30mm, binoculars stop being pocket models. An 8x30 or 8x32 is often called mid-size: noticeably brighter, but around 500g and too long for most pockets. A full-size 8x42 weighs 650g to 850g. So when you choose compact binoculars you are trading some brightness for a pair you will actually carry, and for most daytime use that trade costs you very little, because in good light your own pupils close down to 2mm to 4mm anyway. The objective lens size only starts to matter in low light.

Almost all modern compacts are roof prism binoculars, and every pair on this page is. The straight-through roof prism design lets the barrels sit side by side in a slim tube, where the older porro prism design needs the zig-zag shape you see on classic field glasses. Some budget pocket models are still porro prism, and they can give a good view for the money, but they rarely fold as small or seal out water as well.

8x25 or 10x25 binoculars: which magnification?

This is the big choice with any small binocular, and the specs on this page show the trade clearly.

• 8x is easier to hold steady. Every bit of hand shake is magnified along with the image, and with a light 300g body there is less mass to damp it. At 8x the image settles quickly, which matters when you are tired at the end of a walk or watching from a moving boat.
• 8x shows a wider view. Both 8x25 pairs here show 140m of scene at 1,000m, against 113m to 116m for the 10x25 pairs with ED lenses, and only 87m on the BD 10x25. A wider field makes it much quicker to find a bird or a player and keep it in view.
• 8x is a touch brighter. A 3.1mm exit pupil against 2.5mm gives a bright image for longer at dusk, in woodland and on dull winter days.
• 10x shows more detail. If you mostly watch distant things in good light, such as birds across an estuary, deer on a hillside, ships out at sea or the far end of a racecourse, the extra 25% reach of 10x is worth having.

Our advice: choose 8x25 compact binoculars for birding, walking, hiking, sport and as a first pair; choose 10x25 binoculars if you already own a full-size pair and want a pocket binocular for open country and long views, or if you have steady hands.

Pros and cons of compact binoculars

Pros

• Lightweight: around 300g, so you take them everywhere.
• Fold into a pocket, handbag, glovebox or the hip belt of a daypack.
• Bright and sharp in daylight, with the same quality optics as bigger pairs in the same range.
• Quick to raise and easy for children and smaller hands.
• Usually cheaper than the full-size model in the same series.

Cons

• A dimmer image in low light at dawn, dusk and in thick woodland.
• Harder to hold steady, especially at 10x magnification.
• A narrower field of view than most 8x32 and 8x42 pairs.
• Small focus knobs and eyecups can feel fiddly in gloves.

Who compact binoculars suit

The point of lightweight binoculars is that you carry them everywhere, and the best pair is the one you have with you when something turns up.

• Walkers and hikers. At around 300g a pair weighs less than a full water bottle and slips into a hip belt pouch or the lid of a daypack, so it is there when a buzzard lifts off a hedge. On long hiking days in the hills, that saving over a 750g pair is something your neck notices.
• Travel and holidays. Good travel binoculars pack into hand luggage, a handbag or a jacket pocket for city breaks, cruise days at sea, whale watching and safari trips, where a big pair would get left in the hotel. Wildlife abroad rarely waits while you fetch your optics.
• Concerts, theatre and sport. At a concert, in the gods at the theatre, on a cricket ground or at the races, a pocket binocular brings the stage or the finishing line close without a bulky pair on your lap. Daylight sport needs no big lenses, so the small size costs you nothing.
• A second pair for birders. Plenty of keen birding people own full-size bird watching binoculars and still buy a pocket pair. Many birdwatchers keep a full-size pair for proper birding days and a compact pair in the car glovebox, the kitchen drawer by the bird feeder or a coat pocket for everyday walks.
• Children and people with small hands. Double-hinge compacts fold the barrels close together, so they fit eyes that sit near each other, and the light weight suits young birders.

Where they fall short is the last half hour of light and dark woods. If you watch owls at dusk or wildfowl on grey winter afternoons, bigger lenses earn their weight: look at 8x42 binoculars for one pair that does everything.

Compact binoculars vs mid-size and full-size

Most makers build each range in several sizes with the same glass and coatings, so this comparison is about size and light, not quality.

The twilight factor (the square root of the magnification times the objective lens size) is a rough guide to how much detail you can make out in poor light. For distant birds on open ground, 10x42 binoculars show more than any pocket pair, and for the night sky the big lenses of 10x50 binoculars gather around four times the light of a 25mm lens.

Compare every compact binocular on this page

Specs are taken from each maker's listing. Prices change daily, so check the cards above for today's figure.

A few things stand out. The two 8x25 binoculars share the widest field of view on the page. The BD 10x25 has the narrowest field but the longest eye relief and closest focus of the 10x pairs, and it is the only one without ED lenses. The RSPB HD is the lightest at 300g but has the shortest eye relief, which matters if you wear spectacles. And the Hawke pair is the only one with a lifetime warranty.

What to look for in compact binoculars

ED glass

Extra-low dispersion (ED) lenses bring every colour of light to the same focus, which cuts the purple and green fringes (chromatic aberration) you see around a dark bird against a bright sky, and adds clarity and contrast. It matters more in a pocket binocular than you might think, because the short body leaves less room to correct colour any other way. Six of the seven pairs here use ED or fluorite-rich XD elements.

Prisms and coatings

Look for BAK-4 prisms with phase correction and dielectric mirror coatings, plus fully multi-coated lenses, meaning every glass surface has several anti-reflection layers. Together they add contrast and brightness, which a 25mm objective lens needs more than a 42mm one. The Hawke Frontier ED X and Viking Osprey ED have all of these. The RSPB guide to binocular terms explains each of them in plain English.

Field of view

A wide field of view makes it far quicker to find a bird, a deer or a jockey's colours and to follow them. Around 140m at 1,000m is excellent for an 8x compact; under 100m feels like looking down a tube.

Eye relief for glasses wearers

Eye relief is how far behind the eyepiece your eye can sit and still see the whole picture. If you wear glasses, look for 15mm or more and twist-up eyecups you can wind fully down to stay comfortable. The BD 10x25 gives 18mm and the Viking Osprey 16.3mm; at 13mm the RSPB HD best suits people without specs. Several cheap pocket models have only 11mm to 12.5mm.

Hinge design

Pocket binoculars fold in one of three ways. A double hinge (two pivots on a central bridge, as on the Hawke Frontier ED X, Viking Osprey ED and Genesis 22) folds smallest, with the barrels flat against each other. A single offset hinge, used by Zeiss on the Victory Pocket and Vanguard on the Orros, keeps the focus knob where your finger expects it, which is more ergonomic for some hands. A standard centre hinge, like the Vortex Diamondback HD 8x28, is simply a scaled-down full-size binocular: more comfortable in big hands, but it does not fold as small.

Close focus

Small binoculars make good butterfly and dragonfly glasses. The Genesis focuses down to 1.5m and the BD 10x25 to 1.8m, close enough to watch insects on a garden border.

Waterproofing, build and warranty

Every pair here is nitrogen filled, waterproof and fogproof, so it will not mist up inside when you come in from the cold or get soaked in a shower. Magnesium alloy bodies (Hawke, Viking, RSPB) are stiff, light and durable, and rubber armour gives a rugged, grippy finish in the wet. Note that the Hawke 10x25 has no tripod thread; few pocket binoculars do. Warranties run from 10 years to lifetime on the Hawke; compact binoculars spend their lives in pockets and bags, so a long guarantee is worth having.

How these compare with Zeiss, Swarovski, Leica and Nikon

Most best compact binoculars lists are built around a few famous names, so it helps to know where the pairs on this page sit.

• Premium pocket models such as the Zeiss Victory Pocket 8x25, Swarovski CL Pocket 8x25 and 10x25, Swarovski CL Curio 7x21, Leica Ultravid compacts and Nikon Premier LX L 8x20 regularly come top in independent tests, and cost roughly twice as much as the Hawke and Viking pairs here, or more. The Genesis 22 is in that league: the Birdwatching.com pocket binoculars test praised its unusually wide view and close focus alongside the Zeiss, Swarovski and Leica models. Slightly larger premium options such as the Swarovski CL Companion 8x30 sit between pocket and mid-size. Leica and Swarovski both use a two-hinge design on their smallest models, and the Swarovski CL Pocket was praised for how well it fills the hand for its size.
• Mid-priced picks like the Zeiss Terra ED Pocket 8x25 (rated top of the mid-priced pocket binoculars in that same test), Vortex Diamondback HD 8x28 and Nikon Monarch range compete directly with the Hawke Frontier ED X, Viking Osprey ED and RSPB HD on this page, which match them on ED elements, prism coatings and waterproofing.
• Budget pocket binoculars from Nikon (the Travelite and Aculon ranges), Bushnell, Celestron, Vanguard, Steiner, Nocs and Pentax mostly cost under £150. Reviewers rate the Nikon Travelite, Steiner Safari Pro and Nocs Standard Issue as good value, and they are fine for occasional concerts and sport, but budget optics often skip ED lenses, full multi-coating or full waterproofing, and some Steiner and Vanguard models have only 11mm to 12.5mm of eye relief.

In short, between about £255 and £300 you get the optics serious birders look for in a pocket size, and the Genesis is there if you want flagship optics.

Choosing travel binoculars for hiking and holidays

If your compact binoculars are mainly for travel and hiking rather than birding at home, a few extra points matter:

• Weight and folded size. All seven pairs here weigh 300g to 320g. The double-hinge Viking, Hawke and Genesis models fold the smallest.
• Waterproof and fogproof. Rain on a fell, spray on a ferry and humid tropical heat all fog cheap optics; nitrogen-filled pairs stay clear.
• A protective case. The Viking Osprey ED comes with a hard clam shell, the RSPB HD with a fabric case.
• Eye relief. Sunglasses count as glasses: 16mm or more lets you keep them on.
• Warranty cover. Pocket optics get dropped; a 10-year or lifetime warranty is worth more on a travel pair than on one that lives on the windowsill.

For safari and wildlife trips, 8x is the usual choice because animals move and vehicles shake; for cruises and coastal walks with long sea views, a 10x25 earns its place.

The best compact binoculars for what you need

• Best all-round compact: the Hawke Frontier ED X 8x25. A 140m view, ED lenses, 16mm eye relief, focus to 2m and a lifetime warranty.
• Best for travel: the Viking Osprey ED 8x25. The same wide 140m field in a 310g body that folds to 110 x 110 x 40mm, and it comes with a hard clam shell cover that protects it in a suitcase.
• Best 10x pocket binocular: the Hawke Frontier ED X 10x25, with the widest 10x view here at 116m.
• Best for spectacle wearers: the Kowa BD 10x25, with 18mm of eye relief and twist-up eyecups.
• Lightest: the RSPB HD 10x25 at 300g, with ED optics and a 2m close focus.
• Best optics regardless of price: the Genesis Prominar XD 8x22.

Getting a steady, sharp view from small binoculars

Compact binoculars shake more than heavy ones, so how you hold them matters. Wrap both hands round the barrels with your thumbs underneath, tuck your elbows into your chest and, where you can, lean on a wall, gate or tree. Wrap the strap round your wrist on a boat. Then set the pair up once:

1. Fold the barrels until you see a single round image.
2. Set the eyecups: twisted up if you do not wear glasses, fully down if you do.
3. Close your right eye and sharpen something with the centre focus wheel, then close your left eye and turn the dioptre (diopter) ring until that side is sharp too. After that you only need the centre focus.

If you are new to birdwatching, the BTO's bird identification guides are a great next step, and the Which? binoculars buying guide has tips on trying a pair before you buy. The full Frontier range, including these compacts, is listed on Hawke's own site.

Looking after compact binoculars

Compact binoculars live in pockets and bags, so a little care keeps the image bright and sharp for years:

• Keep them in their pouch when they share a bag with keys or coins.
• Blow or brush grit off the lenses before you wipe them, then use a microfibre cloth, never a shirt or tissue.
• Use the rainguard and lens caps in wet weather, and dry the body before you put them away.
• Do not leave them on a car dashboard in strong sun; heat is hard on seals and coatings.
• If the two images ever stop lining up after a knock, use the warranty rather than trying to fix it yourself.

Shop more binoculars

If you already have a favourite maker, see every pair from Hawke binoculars, Viking binoculars, Kowa binoculars and RSPB binoculars. Fans of Bushnell can browse Bushnell binoculars. For stalking and first-light use, see our hunting binoculars, and for stars and planets, astronomy binoculars.

Compact binoculars: frequently asked questions

Are compact binoculars good for birdwatching?

Yes, in good light. Quality 8x25 binoculars with ED lenses show plenty of detail on garden birds, waders and birds of prey, and many birders carry one every day. For dawn, dusk and dark woodland, full-size bird watching binoculars are brighter.

Should I buy 8x25 or 10x25?

For most people 8x25: it is steadier, shows a wider view and is a little brighter. Choose 10x25 for long views in open country if you have steady hands.

Are pocket binoculars good for glasses wearers?

Many are. Look for 15mm or more of eye relief and eyecups that twist fully down. On this page the BD 10x25 (18mm), Viking Osprey ED (16.3mm) and Hawke Frontier ED X (16mm) suit specs best.

Are compact binoculars good for concerts and the theatre?

Yes. The stage is brightly lit and fairly close, so 8x25 compact binoculars are ideal and small enough for a coat pocket.

Can I use compact binoculars for stargazing?

They show the Moon's craters and bright star clusters, but 25mm lenses gather little light. For the night sky choose 50mm lenses or larger.

How much should I spend?

Around £255 to £300 buys ED glass, full waterproofing and a 10-year or lifetime warranty. Below about £150 you usually give up ED lenses and coatings; around £600 or more buys flagship glass like the Genesis 22.