Navigator Accessories Price Comparison
Compare 194 navigator accessories from Garmin, Spigen & TomTom — screen protectors, batteries, cables and more, from 0 £ to 0 £.
Navigator Accessories price comparison UK
Navigator accessories are a surprisingly fragmented market — and the price data tells an interesting story. The vast majority of the 194 products listed here sit between 0 £ and 0 £, which means most buyers are spending relatively little on essentials like replacement batteries, extension cables, and screen protectors. Yet the top end stretches dramatically upward, driven by specialist Garmin transducers and marine-grade hardware that serve a very different audience altogether.
CoreParts dominates the catalogue numerically, accounting for the lion's share of listings with a focus on replacement batteries and spare parts for portable GPS devices. If your Garmin handheld or TomTom unit is losing charge faster than it used to, a CoreParts replacement battery is typically the most cost-effective fix — and at an average price well below 0 £, it's hard to argue against. Garmin's own accessories, by contrast, command a significant premium, with an average price nearly twenty times higher, largely because their range includes professional-grade components like the Airmar B619 transducer.
Spigen has carved out a genuinely useful niche here: vehicle-specific screen protectors for built-in infotainment and navigation systems. These aren't generic cut-to-fit films — they're precision-cut for models like the Honda Civic, Volvo XC60, and Tesla Model S & X. If you've ever tried to source a screen protector for a factory-fitted nav screen, you'll know how frustrating the alternatives are. Spigen's vehicle-specific range solves that problem cleanly, though you'll pay noticeably more than for a standard portable GPS protector.
One thing worth flagging: compatibility is everything in this category. An extension cable or mount that doesn't match your exact Garmin model number is essentially useless, and a screen protector cut for a 9-inch display won't fit an 8.7-inch screen. Always cross-reference the product's listed compatibility before comparing prices. That said, once you've confirmed the right fit, comparing offers across retailers like Amazon.co.uk, Currys, and specialist navigation stockists can yield meaningful savings — particularly on navigator mounts and navigator cases where competition is keener. Black Friday and the January sales are reliable windows for discounts on Garmin and TomTom branded accessories specifically.
How to Choose the Right Navigator Accessory
With prices ranging from 0 £ to well over 0 £ for specialist components, navigator accessories aren't a one-size-fits-all purchase. The right choice depends almost entirely on what you already own and what problem you're trying to solve — so here's how to cut through the noise.
Device compatibility first, everything else second
This is the single most important factor and the most common source of returns. A Garmin extension cable listed as compatible with the GPSMAP 66 series will not necessarily fit a GPSMAP 64 or a older eTrex. Always match the accessory to your exact model number, not just the brand. For vehicle-specific screen protectors (Spigen's range being the prime example), you'll also need to confirm the screen size in inches — a 9-inch Honda Civic protector and a 7-inch Honda Civic protector are entirely different products. If in doubt, check your vehicle's manual or the manufacturer's website before purchasing.
Replacement battery: capacity vs. certified fit
If you're replacing a battery in a portable GPS device, you'll see two types of options: OEM-equivalent parts from specialists like CoreParts, and genuine Garmin replacements. CoreParts batteries typically come in well under 0 £ and offer comparable mAh ratings to the originals — adequate for most recreational users. Genuine Garmin batteries cost more but come with manufacturer assurance and are the safer choice for devices used in demanding environments (hiking, marine navigation). Avoid any battery listing that doesn't specify the mAh capacity or the compatible model numbers explicitly.
Screen protector material: tempered glass vs. polymer film
For portable GPS units, a polymer film protector is usually sufficient — they're thin, don't affect touch sensitivity, and cost very little. For built-in vehicle infotainment screens, tempered glass is worth the extra spend: it resists scratches from rings and keys far better, and the optical clarity (look for 95%+ light transmission) keeps the display readable in bright sunlight. Anti-reflective coatings are a genuine bonus for dashboards that catch direct light. Spigen's vehicle-specific protectors use tempered glass as standard, which justifies their higher price point relative to generic alternatives.
Cables and connectivity: voltage matters more than length
Extension cables and charging cables for GPS navigators look interchangeable but aren't. The output voltage and amperage must match your device's requirements — feeding a 5V device with a 12V cable will damage it. Garmin's own extension cables (such as the 010-12820-10) are specified precisely for their device range. Third-party cables can work well, but only if the specifications are clearly stated and the seller can confirm compatibility. USB-C is increasingly common on newer Garmin handhelds; older TomTom units typically use proprietary connectors, so check before assuming a standard cable will do.
Security accessories: worth it for portable units, less so for built-in
The TomTom Anti-Theft Solution addresses a real problem — portable sat-navs left on dashboards remain a theft target, particularly in urban areas. A visible deterrent or a secure mount that doesn't leave suction-cup marks on the windscreen (which signal to thieves that a device is usually present) is a sensible investment. For factory-fitted navigation systems, anti-theft accessories are largely unnecessary since the unit is integrated into the vehicle. Budget around 0 £ to 0 £ for a decent security mount; anything cheaper tends to use flimsy locking mechanisms.
- Essentials on a tight budget (From 0 £ to 0 £) : Screen protector films, basic cables, and generic mounts. Mostly CoreParts and 3MK products. Fine for protecting a portable GPS unit, but don't expect precision-cut fits or high-spec materials. Suitable for casual users who just need a basic layer of protection.
- The sweet spot for most buyers (From 0 £ to 0 £) : Where the majority of CoreParts replacement batteries and Garmin extension cables sit. Solid, functional accessories with confirmed compatibility. This is the range we'd recommend for most people replacing a worn-out component on a portable GPS device.
- Vehicle-specific and branded accessories (From 0 £ to 0 £) : Spigen's entry-level vehicle screen protectors and TomTom security accessories. You're paying for precision fit and better materials. Worth it if your vehicle's infotainment screen is expensive to replace — a tempered glass protector at this price is cheap insurance.
- Professional and specialist components (Over 0 £) : Garmin marine transducers, high-end Spigen protectors for large-format screens (14-inch Toyota Tundra, 15.5-inch Ford F-150), and specialist navigation hardware. A small but distinct segment — only relevant if you have a specific professional or marine navigation requirement.
Top products
- Garmin 010-11874-00 navigator accessory Battery (Garmin) : The most-compared product in the category for good reason — a genuine Garmin replacement battery with confirmed compatibility. More expensive than CoreParts equivalents, but the right choice if reliability matters more than saving a few pounds.
- Garmin 010-12820-10 navigator accessory Navigator extension cable (Garmin) : A niche but essential accessory for specific Garmin installations. Priced at the lower end of the range — one of the few Garmin-branded items that won't stretch the budget. Only relevant if your setup genuinely requires an extension; don't buy speculatively.
- TomTom Anti-theft Solution (TomTom) : A practical purchase for urban drivers who leave a portable sat-nav in the car. It won't stop a determined thief, but it removes the visible cues that attract opportunistic break-ins. One of only two TomTom products in the catalogue — the brand's presence here is limited.
- Spigen Honda Civic 9-inch Screen Protector (Spigen) : A well-executed vehicle-specific screen protector for one of the UK's most popular cars. Tempered glass, precision-cut, and straightforward to install with the included alignment kit. Only one offer available currently, so price comparison is limited — worth monitoring.
- Garmin Airmar B619 Navigator transducer (Garmin) : The highest-priced item in the category by a wide margin — a professional marine transducer for serious chartplotter setups. Completely irrelevant for road navigation users, but if you're outfitting a vessel with Garmin marine electronics, this is a legitimate component. Not an impulse buy.
Related categories
Frequently Asked Questions
How do I know which navigator accessory is compatible with my device?
Always match the accessory to your device's exact model number, not just the brand name. For Garmin products, the model number is printed on the back of the device (e.g. GPSMAP 66i, eTrex 32x). For vehicle screen protectors, you'll need to confirm the screen size in inches — the same car model can have different screen sizes depending on trim level and year. Cross-referencing the product's listed compatibility on the retailer's page before purchasing is essential; returns in this category are disproportionately caused by compatibility mismatches.
Are CoreParts replacement batteries as good as genuine Garmin batteries?
For most everyday use, CoreParts batteries perform comparably to genuine Garmin replacements at a significantly lower price point. They're a reasonable choice for recreational hikers or casual GPS users. However, if you rely on your device in remote or safety-critical environments — offshore sailing, mountain navigation — we'd recommend sticking with genuine Garmin batteries, which carry the manufacturer's quality assurance and are less likely to underperform in extreme temperatures.
Do Spigen vehicle screen protectors affect touchscreen sensitivity?
No — Spigen's tempered glass protectors are designed to maintain full touchscreen responsiveness. The adhesive layer is applied precisely to the screen's active area, and the glass thickness (typically 0.33mm) doesn't meaningfully impede touch input. Some users report a very slight change in feel compared to bare glass, but functionality is unaffected. The bigger practical concern is air bubbles during installation — Spigen includes alignment tools with most of their vehicle-specific kits to help with this.
What's the risk of buying a cheap third-party charging cable for a GPS navigator?
The main risk is voltage mismatch — a cable that delivers the wrong output can damage your device's battery or charging circuit. Generic cables that don't specify output voltage and amperage should be avoided entirely. Stick to cables that explicitly list compatibility with your device model and carry CE certification at minimum. The price difference between a certified cable and a no-brand alternative is rarely worth the risk, particularly for devices like Garmin handhelds that aren't cheap to replace.
Is the TomTom Anti-Theft Solution actually effective?
It's a deterrent, not a guarantee — but a visible security mount does reduce opportunistic theft meaningfully. The TomTom Anti-Theft Solution is designed to make removal without the key difficult and to avoid leaving the telltale suction-cup ring on the windscreen that signals a sat-nav is usually present. For urban drivers who regularly park in public areas, it's a sensible precaution. That said, a determined thief with time won't be stopped by any dashboard mount — the best protection remains not leaving the device visible when the car is unattended.
Should I bother with a screen protector for a built-in car navigation screen?
Yes, and more so than for a portable device. Factory-fitted infotainment screens are expensive to replace — often requiring a dealer visit and a significant parts cost. A tempered glass protector from a brand like Spigen, cut precisely for your vehicle's screen, costs a fraction of that and guards against the scratches that accumulate from daily use (fingernails, rings, cleaning cloths). The optical quality of good tempered glass is high enough that you won't notice it's there during normal use.
Are there navigator accessories to avoid in 2026?
We'd steer clear of unbranded batteries with no mAh specification listed, and any screen protector described only as 'universal fit' for a vehicle-specific screen — these rarely align properly and often leave exposed edges. Generic suction-cup mounts with no model compatibility listed are another category to approach with caution; they tend to fail in warm weather when the suction weakens. Spending a little more on a product with confirmed compatibility and a manufacturer warranty is almost always the better call in this category.