The main difference between Z 1 and D 1G is that Z 1 has added dual-probe temperature control technology, built-in 35 kinds of intelligent formulas, and its capacity has also been expanded. The capacity of Z 1 is relatively large, which is 60L, while the capacity of D 1G is relatively small, which is 50L. In terms of cooking effect, D 1G is designed with an ultra-wide temperature of 20-250℃, while Z 1 is designed with a wide temperature range of 35-250℃, which not only meets the requirements of high-temperature rapid baking, but also meets the needs of low-temperature fermentation. So Z 1 is a bit high-end and suitable for families with large oven usage. D 1G is more suitable for daily use in ordinary families.