Prices updated daily — 3 June 2026
Product type overview
thermometer sits within Health & Vitamins, part of Health, Baby & Personal Care. On this page you compare 15 products from 6 UK supermarkets: Tesco, Sainsbury's, ASDA, Aldi, Morrisons and Waitrose. The lowest unit price for thermometer is £3.00/st at Morrisons. In total, 4 variants of thermometer are compared (different pack sizes and compositions). All prices are normalised to the same unit (per kilogram, per litre or per piece) so that packs of different sizes can be compared fairly — a larger pack is not automatically the best value. The ranking below shows, per variant, which supermarket currently has the sharpest price, including own-label products alongside national brands. Prices refresh daily from the retailers' own public price lists, so you never see stale offers when planning your weekly shop. Allsupers uses no affiliate links or paid placement; the ranking is purely price-based and updated from public data.
Cheapest thermometer
Compare 15 products across 6 supermarkets
thermometer — compare prices across 6 supermarkets
Paw Patrol
Paw Patrol Digital Thermometer
1 pieces
£3.00/unit
at 1 supermarket
Safe + Sound
Safe + Sound Digital Thermometer
1 pieces
£5.00/unit
at 2 supermarkets
Jellyworks
Jellyworks Digital Thermometer
1 pieces
£5.00/unit
at 1 supermarket
TESCO HEALTH
Tesco Health Flexi Tip Thermometer
1 pieces
£5.95/unit
at 1 supermarket
Morrisons
Morrisons Flexi-Tip Thermometer
1 pieces
£7.50/unit
at 1 supermarket
Tommee Tippee
Tommee Tippee FlexiPen Thermometer 8 Second Underarm & Under Tongue Reading, 0m+
1 pieces
£12.64/unit
at 1 supermarket
Braun
Braun Age Precision® Digital thermometer | Digital Stick for Multi-Site Usage | Orally, Rectally or Underarm | Baby and Infant Friendly | #1 Brand among doctors1 | PRT2000
1 pieces
£17.48/unit
at 2 supermarkets
Kinetik Wellbeing
Kinetik Wellbeing Inner Ear Thermometer
1 pieces
£18.59/unit
at 1 supermarket
Braun
Braun Sensian™ Swipe 5 Temple thermometer |TempleSwipe™ Technology |Colour-Coded Digital Display | Baby and Child Friendly | 3-Sec Results | #1 Brand among doctors1 | BST200
1 pieces
£20.00/unit
at 1 supermarket
Safe + Sound
Safe + Sound Infrared Ear Thermometer
1 pieces
£26.50/unit
at 1 supermarket
Braun
Braun Sensian™ 3 Forehead non-contact thermometer
1 pieces
£28.97/unit
at 1 supermarket
tommee tippee
Tommee Tippee Notouch Forehead Thermometer
1 pieces
£30.00/unit
at 1 supermarket
Braun
Braun Sensian™ 5 Forehead non-contact thermometer | Positioning Guidance | Colour-Coded Digital Display | 2 second measurement | Baby and Child Friendly | #1 Brand among doctors1 | BNT300
1 pieces
£39.98/unit
at 1 supermarket
Tommee Tippee
Tommee Tippee Digital No Touch Forehead Thermometer
1 pieces
£50.00/unit
at 1 supermarket
Braun
Braun ThermoScan® 7 Ear thermometer | Age Precision® Technology | Colour-coded Digital Display | Baby and Infant Friendly | #1 Brand among doctors1
1 pieces
£55.00/unit
at 1 supermarket