The crown jewel of the Keurig 2.0 pod-scanning system, feature-rich K500 series brewers offer 11 brew sizes (up to 30 oz) and massive 80 oz reservoir. Now discontinued, we recommend the Keurig K-Duo Plus instead.
One of Keurig's original "Mini" K-Cup models, the K15 has a max 10 oz brew size with its "fill before each use" reservoir. Now discontinued, the K15 has been replaced by the slimmer K-Mini, which brews up to 12 oz K-Cups.
The K-Duo Plus is Keurig's most versatile coffee maker, brewing both single-serve K-Cups (up to 12 oz) and full 60 oz carafes with a convenient swivel water reservoir designed to fit your counter's configuration.