Which of these sonars will you actually use?
We sell to more cruising sailors than anglers, so here is the honest version rather than the tournament-fishing version.
Traditional CHIRP
Sweeps a range of frequencies in one transmission rather than pinging a single note, which separates targets far more cleanly. This is your depth sounder - water under the keel, and a read on whether the bottom is sand, weed or rock.
Garmin ClearVü
Down-scanning. A thin fore-and-aft slice directly under the hull, rendered almost photographically. Good for picking out a wreck, a mooring block or the edge of a weed bed as you pass over it.
Garmin SideVü
Images a swath of seabed out to port and starboard. Needs slow, straight, steady running to give a clean picture. Genuinely handy hunting for a lost mooring chain; less so on passage.
Ultra High-Definition
Not a fourth sonar - it is ClearVü and SideVü run at higher frequencies. The usual trade applies: more detail, less depth. Designed around shallow, clear inshore water.
Every Garmin chartplotter we stock
| Model | Plus 45cv 4.3 inch keyed | UHD2 55cv 5 inch, keyed | UHD2 65sv 6 inch touch | UHD2 75cv 7 inch, keyed | UHD2 75sv 7 inch touch | UHD2 95sv 9 inch touch | GPSMAP 723 7 inch, no sounder | GPSMAP 723xsv 7 inch touch | GPSMAP 923 9 inch, no sounder | GPSMAP 923xsv 9 inch touch | 923xsv + radar 9 inch + GMR 18 HD3 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| You are viewing | |||||||||||
| Screen | 4.3 in | 5 in | 6 in | 7 in | 7 in | 9 in | 7 in | 7 in | 9 in | 9 in | 9 in |
| Resolution | 480x272 | 800x480 | 800x480 | 800x480 | 800x480 | 1024x600 | 1024x600 | 1024x600 | 1280x720 | 1280x720 | 1280x720 |
| Touchscreen | No | No | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Built-in sonar | CHIRP + ClearVü | CHIRP + ClearVü | CHIRP + ClearVü + SideVü | CHIRP + ClearVü | CHIRP + ClearVü + SideVü | CHIRP + ClearVü + SideVü | None | CHIRP + ClearVü + SideVü | None | CHIRP + ClearVü + SideVü | CHIRP + ClearVü + SideVü |
| Charts included | BlueChart UK & IE | Navionics+ UK & IE | Navionics+ UK & IE | Navionics+ UK & IE | Navionics+ UK & IE | Navionics+ UK & IE | Worldwide basemap | Worldwide basemap | Worldwide basemap | Worldwide basemap | Worldwide basemap |
| Radar capable | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Radome included |
| NMEA 2000 | No | No | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| NMEA 0183 | Yes | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
| Autopilot control | No | No | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Marine Network | No | None | Sonar only | None | Sonar only | Sonar only | Radar, sonar, charts | Radar, sonar, charts | Radar, sonar, charts | Radar, sonar, charts | Radar, sonar, charts |
| Video input | No | No | No | No | No | No | Yes | Yes | Yes | Yes | Yes |
| Input voltage | 9-18 V | 9-18 V | 9-18 V | 9-18 V | 9-18 V | 9-18 V | 10-32 V | 10-32 V | 10-32 V | 10-32 V | 10-32 V |
| Weight | 0.7 kg | 0.5 kg | 0.8 kg | 0.68 kg | 1.0 kg | 1.3 kg | 1.3 kg | 1.3 kg | 1.6 kg | 1.6 kg | 1.6 kg |
| Price | £311.80 £370 | £340.90 £449.99 | £623.58 £829.99 | £467.35 £599.99 | £729.95 £1,000 | £876.49 £1,169.99 | £749.99 £899 | £899.99 £1,079.99 | £1,133.33 £1,360 | £1,323.90 £1,545.50 | £2,684.65 |
| View product | Plus 45cv | UHD2 55cv | You are here | UHD2 75cv | UHD2 75sv | UHD2 95sv | GPSMAP 723 | GPSMAP 723xsv | GPSMAP 923 | GPSMAP 923xsv | 923xsv + radar |
The three questions we get asked every time
Three questions come up on the phone almost every week. Here is what we tell our customers.
Why is it sold without a transducer?
Because the UK models we stock are display-only - and because for most of our customers that is the right answer anyway.
- The bundled transducer on overseas versions is nearly always a transom mount, which lifts clear of the water the moment a yacht heels
- Many boats already have depth on the NMEA 2000 bus from existing instruments - the plotter simply reads it
- An existing Garmin transducer can often be reused with an adapter cable
- Buying the display bare and pairing it with a through-hull is a better install, not a compromise
Which transducer, and where does it go?
Three fittings, and the right one depends far more on your hull than on the display in front of it.
- Transom mount - the simplest to fit, no hole in the hull, adjustable afterwards. Unsuitable for a yacht that heels; vulnerable on a drying mooring
- Through-hull - best signal and best at speed, the standard answer for a keelboat. Needs a haul-out, and usually a fairing block on a deep-V or sailing hull
- In-hull - no hull penetration, fits afloat, nothing to snag. Only works through solid GRP, never through a cored laminate, steel or aluminium, and you lose some sensitivity
Which models come with UK charts?
This is the question that catches people out, because the two Garmin ranges answer it differently.
- ECHOMAP UHD2 - Garmin Navionics+ for UK and Ireland is already loaded, with a year of daily updates. Nothing else to buy before your first trip
- GPSMAP - a worldwide basemap only. That is a coarse global outline, so a Garmin Navionics+ or BlueChart g3 card is needed as well as the display
- Vision+ is the optional step up on either range: it adds relief shading, satellite and aerial harbour imagery and 3D views
- Charts keep working when a subscription lapses - you stop receiving updates, you do not lose the cartography
Not sure which Garmin fits your boat?
Radar or no radar, 12 V or 24 V, transom or through-hull - a two-minute conversation usually saves a return. We have been fitting marine electronics at Fox's Marina since 1927.
Delivery & Returns
We ship chandlery, clothing and marine equipment around the world and always endeavour to get your products to you as quickly and as cost-effectively as possible. We will dispatch your order as soon as possible, usually the day it is received for orders placed before 2PM. Our stock is controlled such that all items bought online are available in stock with our shop or supplier. If there is any delay due to a product being out of stock, or there is a longer lead time, for example, in the case of ‘Special Order’ items, or having a longer lead time for production, we will contact you, however, this will also be suggested at the checkout. In such cases, we will advise when the product will be delivered (or is available for collection if you have opted to collect from our store).
Standard UK Mainland 1 - 2 Working Days (Excluding Weekends & Bank Hollidays) - £6.95
Next Day Delivery (Please note that orders must be received by 1400hrs for next day delivery. In some instances, we may be able to dispatch later in the day for next day delivery but this cannot be guaranteed. - £9.95
Scotish Highlands & Islands 2 - 3 Working Days (Excluding Weekends & Bank Hollidays) - 14.45
Isle of Wight 2 - 3 Working Days (Excluding Weekends & Bank Holidays) - £9.45
Northern Ireland 2 - 3 Working Days (Excluding Weekends & Bank Holidays) - £14.95
Our policy is simple – you have up to 90 days to return your purchase if it’s not suitable or you’ve changed your mind. Our hassle-free 90-day returns policy applies to most items and is offered in addition to your statutory rights.
Return goods purchased in-store
Simply bring your order confirmation or delivery note and the item you wish to return or exchange, unused and in its original packaging, to our till point in the shop. If you paid by debit or credit card, please ensure you also bring the payment card you originally used to buy the item/s.
Return goods bought online
1. Start your return through the Returns Process in your Fox’s Chandlery online customer account within 90 days of delivery.
2. Once approved, you will receive a Return Authorisation Number (RAN) and shipping instructions.
3. Package the item securely in its original packaging – please do not apply labels or tape directly to the product packaging.
4. Use a tracked courier service and always obtain proof of postage.
5. Please allow up to 14 working days after we receive the goods for your return to be processed.
If you need your item/s to be collected because it's large or heavy please call our online team on +44 (0) 1473 694725.
If you need to add or remove items from your order, change the details of your delivery address or cancel the order completely, please contact our Online Team for advice on +44 (0) 1473 694725 between 0900 and 1730 Monday to Friday or email us. Please quote your order number and order date. If your order has already been dispatched or delivered, then you will need to follow our Returns procedure in the event of any unwanted products.









