Bosch 1.7l 2.4kw Kettle in White vs 1.5L 3kWh Kettle - White — Comparison

Bosch TWK3P421GB 1.7L 2.4kW Kettle in White is priced at £34, while Bosch TWK8631GBW 1.5L 3kWh Kettle in White is priced at £59. Both sit in Bosch’s kettle line-up, but the TWK3P421GB is the lower-priced, larger-capacity white option, whereas the TWK8631GBW is the dearer, more feature-led white model. That makes this a model-by-model decision about capacity, power delivery, convenience features and how much design detail you want on the worktop.

In specification terms, the TWK3P421GB offers a 1.7L capacity, 3000W output, limescale filter and cup indicator, while the TWK8631GBW drops to 1.5L but keeps 3000W power and adds a keep-warm function plus a water level indicator. Because both products come from the same brand, the meaningful differences are the practical details: how much water each model holds, how quickly the stated wattage supports boiling, which filters or indicators are included, and whether the extra feature set justifies the price gap for your household routine.

The TWK3P421GB suits households that want maximum water capacity for the least money, especially families making several mugs or filling a cafetière. The TWK8631GBW suits users who prefer a smaller 1.5L kettle with keep-warm convenience for repeat cups without immediately reboiling. The £25 jump buys comfort rather than more capacity, so the cheaper model is better value if you simply want hot water fast. For buyers comparing them online, it is worth thinking beyond colour alone: capacity affects how often you refill, power affects waiting time, and small usability details such as water windows, cup indicators, filters or temperature control often matter every morning.

Bottom line: choose TWK3P421GB if you want a £34 1.7L Bosch kettle with 3000W power, limescale filtration and a cup indicator / opt for TWK8631GBW if you would pay £59 for a 1.5L Bosch kettle with keep-warm convenience and a clear water level indicator.