Where to Buy Affordable Replacement Razor Blades
Find the right refill for your handle, compare prices properly and avoid buying cartridges that do not fit.
Running out of razor blades is frustrating, but buying the cheapest-looking pack can be a false economy if it does not fit your handle. Before you order, identify your razor system, compare the price per cartridge and decide whether one-off packs or scheduled refills suit your routine.
1. Start by identifying your handle
Look for the brand and model name printed on the handle or original packaging. Cartridge systems are not universal: two five-blade razors can look similar but use completely different fittings. Check the manufacturer’s compatibility information before buying.
- Keep the packaging or take a photo of the handle and cartridge connection.
- Check whether the product is for the Original, Pro, Power or another named system.
- Do not assume that the same blade count means the cartridges are interchangeable.
2. Where can you buy replacement blades?
The manufacturer’s website
Buying direct makes it easier to confirm compatibility and see the current pack sizes. For example, Gillette UK lists Fusion5 refills in different pack sizes, while Harry’s UK sells Original and Plus refills for its own handle systems. Check which exact handle family you own.
Supermarkets and online retailers
Large supermarkets, pharmacies and online retailers can be useful for comparing promotions and delivery options. Check the seller, pack quantity, product name and whether the listing is for the exact cartridge family you need.
A brand’s refill subscription
A subscription can help you avoid running out, but compare the delivery interval and the quantity sent. A low-looking monthly price may cover fewer cartridges, while another service may deliver every two or three months.
3. Compare cost per cartridge, not just pack price
Divide the total price by the number of cartridges. Then add delivery if it applies. For a longer-term comparison, estimate your actual yearly use rather than assuming everyone replaces blades at the same rate.
| What to compare | Why it matters |
|---|---|
| Pack quantity | A larger pack may have a lower unit price but costs more upfront |
| Cartridge compatibility | The wrong refill will not fit your handle |
| Delivery cost | Can change the real total for small orders |
| Subscription frequency | You need a delivery schedule that matches how often you shave |
| Cancellation and flexibility | Check whether you can pause, change or cancel easily |
4. Consider a different razor system
If your current refill system is expensive or difficult to find, you can compare a different handle-and-cartridge system. SmartShave has separate 3-blade and 5-blade ranges: SB3 and CB3 use 3-blade cartridges, while GG5 and BB5 use 5-blade cartridges. The starter kits are listed at £9.99 and SELECT at £24.99 per month for four replacement cartridges. Confirm the current kit contents and terms on the product pages.
5. One-off refills or subscription delivery?
One-off packs are useful if your shaving routine changes or you want to buy only when needed. A subscription can be convenient if you use a predictable number of cartridges and prefer regular delivery. Before signing up, check how often it renews, how many cartridges arrive, the total recurring cost and the account options for managing it.
A quick checklist before checkout
- Have I matched the refill to my exact handle?
- Have I checked the number of cartridges in the pack?
- Have I calculated the price per cartridge?
- Have I included delivery and any minimum spend?
- If it is a subscription, do I understand the renewal schedule and cancellation terms?
Explore replacement options
Compare SmartShave’s 3-blade and 5-blade systems and choose the starter kit that matches your preference.
Explore SmartShave razorsFrequently asked questions
Are razor cartridges universal?
No. Most cartridge systems use brand- or model-specific fittings. Always confirm compatibility.
Is buying a larger pack cheaper?
It can reduce the unit price, but compare the exact pack and the total amount you will pay. Avoid buying more than you can reasonably use.
Are subscriptions cheaper than buying refills individually?
It depends on the brand, pack size, delivery interval and discounts. Compare the full cost over the same period.