NEFF vs — Comparison

The HLAWG25S3B is the NEFF HLAWG25S3B N 30 800W 20l Built-In Microwave Oven in black, priced at £399.00. The NR4WR21G1B is the NEFF NR4WR21G1B N 70 Built-In 900W Microwave Oven in graphite-grey, priced at £819.00. Within NEFF's built-in microwave range, the HLAWG25S3B is the lower N 30 option, while the NR4WR21G1B sits in the more premium N 70 tier.

The HLAWG25S3B has the clearer compact specification: 20l capacity and 800W microwave power, with a black built-in finish. The NR4WR21G1B raises output to 900W and moves to NEFF's N 70 level, with a graphite-grey finish. The provided data does not list its capacity, so the confirmed differences are wattage, series position, colour and price. There is no grill or combi function listed for either model in the supplied details.

The HLAWG25S3B suits buyers fitting a smaller built-in microwave into a kitchen where 20l capacity is enough for reheating plates, bowls and simple defrosting. It is also far easier to justify at £399.00. The NR4WR21G1B suits a higher-spec NEFF kitchen where the N 70 tier and 900W output matter more than keeping costs down. The trade-off is substantial: the premium model costs £420 more before any installation considerations.

Bottom line: choose HLAWG25S3B if you want NEFF built-in microwaving at £399.00 with 20l capacity and 800W power / opt for NR4WR21G1B if the N 70 tier, 900W output and graphite-grey finish justify £819.00.