The RHD H-Kettle 0.5 is the smallest kettle in this review set, 0.5 liters, 600W, 220V, designed for single-cup international travel use at $19.89. The 3,400 reviews at 4.4 stars give it a meaningful feedback base for a niche travel product.
Solo travelers or expats in 220V countries who need a compact, lightweight kettle for one cup at a time. The 0.72 lb body and 0.5L capacity are specifically travel-minded.
Skip if
You're in North America and don't have a voltage converter, 220V only, not compatible with US 110-120V outlets directly. Also not suitable if you're making tea for more than one person at a time.
Capacity 0.5 L
Carafe / container Kettle
Wattage 600 W
Material Stainless Steel
Color Light Green 0.5L
Dimensions 6.9 X 4.1 X 6.6 In
Priced 46% below the category median ($36.99 across 92 tracked models)
Capacity of 0.5 L - smaller than 99% of the 93 models we track
Wattage of 600 W - lower than 98% of the 93 models we track
Our scorecard
4.4/5overall
Owner rating4.4/5
4.4 average across 3,400 owner ratings
Popularity3.4/5
3,400 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other coffee makers, kettles and brewers we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
At 0.5 liters and 0.72 lb, the H-Kettle 0.5 is compact enough to fit in a carry-on bag with room to spare. Dimensions are 6.9 x 4.1 x 6.6 in. For context, 0.5 liters is roughly 17 oz, one standard-sized mug, or two smaller cups.
The 600W element is lower than home kettles but appropriate for this volume and for travel-grade power conditions. Boil times will be longer than a 1500W home unit, but 0.5L at 600W is still under 5 minutes in most conditions.
At 3,400 reviews and 4.4 stars, this has more market validation than most small travel kettles. The light green color is a visual detail, the stainless steel body is the durability feature. At $19.89, it's an affordable tool for a specific need.
Pros
Extremely compact, 6.9 x 4.1 x 6.6 in and 0.72 lb makes it genuinely portable
3,400 reviews at 4.4 stars is strong validation for a niche travel product
Stainless steel construction handles travel wear
220V compatible for most of Europe and Asia
Priced at $19.89, low cost for a dedicated travel kettle
Cons
220V only, not usable on US 110-120V outlets without a converter
0.5L is only enough for one cup at a time
600W means slower boil times than home models
Light green color is a style commitment, not universally appealing
Performance notes
600W on 0.5L is low power density, which means longer boil times but lower draw on travel-grade power strips. Stainless steel body at 0.72 lb is one of the lightest in this review set. 220V operation confirmed, verify outlet compatibility at destination before use.
What buyers say
3,400 reviews at 4.4 stars is a strong result for a sub-1L travel kettle. Buyers in this segment typically need something that works reliably in hotel rooms and rental apartments abroad, and the review data suggests the H-Kettle 0.5 meets that standard consistently.
No, not without a step-up voltage converter. The H-Kettle 0.5 requires 220V. Plugging it into a standard US 120V outlet without a converter risks damaging the appliance.
How long does it take to boil 0.5 liters at 600W?
At 600W, expect roughly 4-6 minutes to bring 0.5L to a full boil, depending on starting water temperature.
Can I pack this in carry-on luggage?
At 0.72 lb and 6.9 x 4.1 x 6.6 in, it is physically small enough for a carry-on bag. Always verify current airline regulations for electric appliances before packing.
We use necessary cookies to keep the site working. With your permission, we also use functional, analytics, and marketing cookies. Read our Cookie Policy.
