Comet, the British electricals name, is returning in 2026, this time as an online marketplace for tech and consumer electricals. If you sell electronics or appliances, it’s a channel worth getting ready for now, because sellers who join before launch will have their products live from day one.
Here’s what the new Comet is, why it’s a strong fit for tech and electricals sellers, the challenge of listing electronics on any marketplace, and how Koongo gets your catalogue ready ahead of launch.
What is the new Comet?
Comet is a specialist marketplace for fast-moving tech and consumer electricals, launching in 2026 as part of the OnCommerce platform. OnCommerce positions it not as a general marketplace but as a curated destination: a tighter range of electronics and appliance brands rather than everything under one roof.
For shoppers, Comet is a familiar name. It was a fixture of British electricals retail for decades, and OnCommerce describes it as a household name trusted by generations of shoppers, now returning as a dedicated tech platform with one of the widest ranges in the UK.
Why sell on Comet?
Comet’s focus is what makes it interesting for the right seller. A few reasons it’s worth your attention:
A category-focused audience. Comet shoppers arrive looking for tech and electricals specifically. A curated marketplace attracts buyers with clear intent, rather than browsers, which tends to suit sellers in a defined category better than a general marketplace does.
A trusted, returning brand. OnCommerce describes Comet as backed by strong national interest and an eager audience. Relaunching an established name means Comet starts with recognition that a brand-new marketplace has to earn from scratch.
A shopper-friendly delivery promise. OnCommerce states that Comet will offer free UK delivery on every product, including large appliances. For big-ticket electricals, where delivery cost often decides the sale, that removes a common barrier to purchase.
Comet is a UK-focused marketplace, so it’s the natural fit for sellers targeting British shoppers in the electronics and appliances space.
The challenge: listing electronics is detail-heavy
Electronics and appliances are among the most demanding categories to list well. More than most products, they depend on accurate, complete data:
- Precise identifiers such as GTINs and EANs (the barcodes marketplaces use to match products), which matter more in tech, where near-identical models are easy to confuse
- Detailed specifications (dimensions, power ratings, compatibility, model numbers) that shoppers rely on before buying
- Correct categorisation to the marketplace’s own structure
- Accurate stock and pricing that stays current as fast-moving tech sells through
Preparing all of this by hand for each marketplace, then keeping it up to date, is slow and error-prone. In a category where a wrong spec or a mismatched identifier means a returned order, the data work matters even more.
How Koongo gets your catalogue ready for Comet
This is where Koongo comes in. Koongo’s Marketplace Manager is a wizard-based, no-code integration that connects your store to OnCommerce marketplaces through an API integration, a two-way real-time connection. It handles the data work that electronics listings demand:
- Product sync. Koongo’s attribute mapping aligns your store’s fields, including identifiers like GTINs and detailed product attributes, to the marketplace’s required format automatically.
- Inventory sync. Stock updates across every connected channel, so a fast-selling item never oversells on one channel while listed as available on another.
- Order sync. Marketplace orders import into your store, so you fulfil everything from one place.
Koongo works with Shopify, WooCommerce, Magento, PrestaShop, BigCommerce, Wix, Shopware, Lightspeed, and custom platforms via API.
How to be ready for Comet’s launch
Because Comet runs on OnCommerce, you don’t wait for launch to get set up. You start on OnBuy now, and your catalogue is prepared for Comet when it opens.
- Register as an OnBuy seller through OnCommerce. One account covers OnBuy today, plus Comet and easyShop as they launch.
- Connect your store with Koongo. Start on a free plan with no credit card required; paid plans start from €24/month with a 7-day free trial.
- Sell on OnBuy now, build your sales history, and your products are ready to go live on Comet at launch.
Get a head start: the early-bird promo
There’s a strong incentive to register before launch. Sign up before 31 July 2026: pay your first month, then get your next 12 months free. OnCommerce subscriptions start from £25/month, and standard selling fees on your sales still apply.
These are two separate costs. Koongo’s plans (from €24/month) cover the sync tool that connects your store to the marketplace. The OnCommerce subscription (from £25/month) is your marketplace seller subscription, and it’s this that the offer waives for 12 months.
Note that 31 July 2026 is the offer deadline, not Comet’s launch date. Comet is scheduled to launch in 2026, but a specific launch date has not been confirmed.
FAQ
What is the new Comet?
Comet is a returning British retail brand relaunching in 2026 as a specialist online marketplace for tech and consumer electricals. It runs on the OnCommerce platform, the same platform behind OnBuy and easyShop.
When does Comet launch?
OnCommerce states that Comet is launching in 2026, but a specific launch date has not been confirmed. Note that the 31 July 2026 early-bird deadline is the offer cut-off, not the launch date. Sellers can prepare now by registering through OnBuy, so their products are ready to go live on Comet at launch.
How do I sell on Comet?
Register as a seller through OnCommerce (starting with OnBuy), then connect your store with Koongo. Because the marketplaces share one account, your catalogue is set up for Comet when it opens, with no separate application.
What does Comet sell?
OnCommerce describes Comet as a curated marketplace for fast-moving tech and consumer electricals, focused on a selected range of electronics and appliance brands rather than a general product catalogue.
Does Comet offer free delivery?
OnCommerce states that Comet will offer free UK delivery on every product, including large appliances.
Is Comet available outside the UK?
Comet is presented as a UK-focused marketplace. Sellers targeting British shoppers in tech and electricals are the natural fit. For wider European reach, OnBuy and easyShop cover 21+ countries on the same account.
How much does it cost to sell on Comet?
OnCommerce states that subscriptions start from £25/month and cover all its marketplaces. An early-bird offer runs until 31 July 2026: pay your first month and get the next 12 free. Standard selling fees still apply. Connecting your store with Koongo is a separate cost that starts on a free plan, with paid plans from €24/month.
Sell tech or electricals? Get your catalogue ready for Comet’s 2026 launch now. Connect your store with Koongo, and claim the early-bird offer before it closes on 31 July 2026.
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