Model comparison
Hamilton Beach FlexBrew 49921 or Advanced 4-in-1 49925?
Both the Hamilton Beach FlexBrew 49921 and FlexBrew Advanced 4-in-1 49925 brew one cup at a time from pods or loose grounds and offer a dedicated hot-over-ice route. The useful question is not simply which one says “iced.” The 49925 states three iced serving sizes and matching ice amounts, adds a hot Bold button, and has a 45-ounce removable tank. The 49921’s page describes a 50-ounce tank and faster manufacturer estimate, while its manual does not specify a selected iced output. Neither is a carafe brewer or a cold-water steeping system.
What the iced modes actually tell you
The 49925 lists 10-, 12-, and 14-ounce iced selections. The Use and Care Guide pairs them with 5, 6, and 7 ounces of ice and says that the added ice is part of the brewed volume. Use a heatproof tumbler or travel mug; the guide explicitly says not to use glass. This gives a little more planning certainty when the drink’s serving volume matters.
The 49921 also has a dedicated Iced button and supports pods or grounds for that cycle. Its guide asks for ice in a 16-ounce heatproof tumbler or travel mug and warns against glass, but it does not identify a button-selected iced size. The ordinary hot-size controls should not be repurposed as an iced-volume promise. If you need a stated 10/12/14-ounce iced menu and ice quantities, the 49925 is the more explicit choice. If the iced routine itself is enough and an unspecified output is acceptable, the 49921 retains the feature.
Both iced routines are hot coffee brewed over ice. Neither has the documented ambient-water grounds Cold Brew function found on some other brewers. If cold extraction is essential, the two models should both be ruled out rather than treated as substitutes.
Hot cup flexibility, tank and counter fit
The 49925’s manual lists 8, 10, 12, and 14 ounces for the hot menu and regular or Bold strength. For pod coffee, Hamilton Beach recommends 12 ounces or less for best flavor; do not treat the top setting as an equal-quality promise for every capsule. The exact 49921 page distinguishes its hot inputs: 8 and 10 ounces for pods, 8 through 14 for grounds, with no Bold setting documented. Choose based on the cup you actually make, not on a single “largest cup” label.
The 49921 reservoir is listed at 50 ounces and the maker says up to six servings without refilling. The 49925’s 45 ounces is described as five 8-ounce servings. The 49925 is narrower at 5.5 inches, while the 49921 is 6.6 inches wide; check opening clearance above the lid and room to remove either tank. Both are single-cup appliances, so repeated refills of the brew baskets still happen even when the water tank is large.
Who should choose which?
Choose the 49925 if its labeled iced-size options, ice directions, narrower body or hot Bold setting address a daily need. Choose the 49921 if the bigger reservoir and maker-stated 90-second eight-ounce estimate matter more, and you are comfortable with an iced routine that does not give a selected output size in its guide. The 49921’s estimate is a manufacturer statement, not an independent test; the 49925 page gives an approximate two-minute hot eight-ounce estimate.
For buyers who never brew iced coffee, the hot-only 49901 is another pod-and-grounds comparison and includes Bold. For a household that wants to pour several cups at once, look for a carafe model. For steeped cold brew, select a machine that documents that process instead of relying on the word “iced.”
Read the FlexBrew 49921 review · Read the FlexBrew 49925 review · Hamilton Beach 49925 product page