If you're responsible for procurement at a hotel, you've probably been asked — or asked yourself — whether it's time to switch from magnetic stripe key cards to RFID. It's a fair question, and one that doesn't have a one-size-fits-all answer. Both technologies have a place in UK hospitality, and the right choice depends on your lock system, budget, and operational priorities.

Here's an honest, practical comparison to help you decide.

How each technology works

Magnetic stripe (magstripe) cards store data on a strip of magnetic material on the card's surface. The guest inserts or swipes the card through a reader, which reads the encoded data and unlocks the door. This is the same technology used in traditional bank cards.

RFID (Radio-Frequency Identification) cards contain a small chip and antenna embedded inside the card. The guest holds or taps the card against a reader, which communicates wirelessly with the chip. No physical contact with the reader is needed — hence the term "contactless."

Cost comparison

Magstripe cards are cheaper to produce. A standard printed magstripe card costs £0.08–£0.15 per unit in bulk. RFID cards typically run £0.18–£0.40 per unit depending on the chip type (125 kHz, MIFARE Classic, MIFARE DESFire).

However, the total cost of ownership tells a different story. Magstripe cards wear out faster, get demagnetised by phones and wallets, and need replacing more frequently. RFID cards last significantly longer — a well-made RFID card can survive 100,000+ read cycles compared to around 1,000 swipes for a magstripe card.

Bottom line: RFID cards cost more upfront but less over their lifetime. For a 100-room hotel, the annual cost difference typically narrows to under £200 when you account for replacement rates — and RFID offers a noticeably better guest experience.

Durability and reliability

Security

Magstripe data can be cloned with inexpensive equipment. While hotel key card cloning is uncommon, it's a known vulnerability. RFID cards — particularly MIFARE DESFire — use encrypted communication between the card and reader, making cloning significantly more difficult.

For properties that handle high-value guests, corporate clients, or government visitors, the security difference can be meaningful.

Lock system compatibility

This is often the deciding factor. Your lock system determines which card type you can use:

Guest experience

Contactless operation is now the norm in retail and transport. Guests expect the same frictionless experience at a hotel. Tapping a card against a reader feels modern and intuitive — swiping a card through a slot feels dated.

This matters more than many hoteliers realise. Small perception details accumulate, and a contactless key card aligns your property with the premium, tech-forward experience that today's travellers expect.

Our recommendation

If your lock system supports RFID, use RFID. The guest experience is better, the cards last longer, and the total cost difference is marginal once you factor in replacement rates. MIFARE Classic cards offer the best balance of cost and compatibility for most UK hotels.

If you're on a legacy magstripe system and a lock upgrade isn't in the budget, magstripe cards remain a perfectly functional choice. Focus on ordering quality cards from a reliable supplier to minimise failure rates, and consider dual-technology cards when you're ready to begin transitioning.

At Connekd, we supply both RFID and magstripe cards and can advise on the best option for your specific lock system. We also stock dual-technology cards for properties in the middle of a phased upgrade.