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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-22 · 7 min read · Independent comparison
If you want a see-through glass air fryer that handles sweet potato cubes, fries and whole sweet potatoes with eight one-touch presets and a wide temperature window, choose BYOIPLOI 3.81QT; if you need the extra room of a larger glass pot for family-sized sweet potato batches, choose HIPUDNLM 1200W.
• BYOIPLOI 3.81QT — biggest trade-off: its stated capacity is smaller than the HIPUDNLM's, so very large sweet potato loads may need two rounds.
• HIPUDNLM 1200W — biggest strength: a 4.44Qt (4.2L) glass pot with the same 1200W rapid-heating setup, giving more room per batch for family meals and party sides.
• HIPUDNLM 1200W — biggest trade-off: its published specs emphasize presets and capacity but don't spell out a temperature floor and ceiling or a minute range, so fine-tuning sweet potato timing is less documented.
• Who each pick is for: BYOIPLOI 3.81QT for the cook who wants precise, repeatable sweet potato results; HIPUDNLM 1200W for the household that wants more sweet potatoes in one go.
The BYOIPLOI 3.81QT is built around control. You get eight preset modes — French fries, roast, chicken wings, egg tarts, grilled fish, sweet potatoes, grilled shrimp and steak — each with a reference temperature and time. If none of them matches your sweet potato plan, you can dial in your own: anywhere from 1 to 60 minutes and 176°F to 392°F. For sweet potatoes specifically, that matters more than it sounds. Whole potatoes want a long, moderate bake; cubes want a shorter, hotter blast; fries sit somewhere in between. A wide, clearly stated range is what lets one machine do all three.
The second thing that stands out is the 360° transparent glass fry bowl. Borosilicate glass means you watch the food actually browning instead of guessing through a tiny window or pulling the basket open and losing heat. The inner material is glass, the body combines PP, borosilicate glass and stainless steel, and the stainless steel grill is there to circulate hot air evenly around the food. The touchscreen with digital display shows your current settings and progress at a glance, and the ergonomic handle gives a secure grip when you slide the glass pot in and out. The 31.5-inch power cord gives you real placement freedom on the counter.
It's 1200W with rapid heating, so preheating is quick — useful when you're roasting sweet potato cubes on a weeknight and don't want to wait around. It weighs 7.1 pounds and measures 9.84"D x 8.94"W x 12.6"H, which is compact enough for most counters.
Buy it if you cook for one to three people, you want to tune temperature and time yourself, and you like watching the food cook. Skip it if you regularly feed a crowd in one batch — the capacity is the limiting factor here, not the performance.
The HIPUDNLM 1200W takes the same core idea — a borosilicate glass pot you can see through, a stainless steel grill for air circulation, 1200W of rapid heating — and pushes the capacity to a stated 4.44Qt (4.2L). In practice, that's the difference between one comfortable tray of sweet potato cubes and a tray that actually fills the pot. If sweet potatoes are a side dish for four or more people, or you're prepping a batch to reheat later in the week, the extra volume is the whole point.
It also ships with eight preset cooking modes covering fries, chicken wings, steak, fish, shrimp, sweet potatoes and more, plus adjustable temperature and time settings for custom cooking. The 360° clear view works the same way as on the BYOIPLOI: you monitor from multiple angles without opening the fryer, which keeps heat inside and helps results stay consistent. The touchscreen with digital display handles the interface, assembly is not required, and it's a tabletop unit with a modern cylinder shape. The kit includes the air fryer, a grill and an English manual.
Two practical details I like: the 31.5-inch cord for flexible counter placement, and the stated use cases — home kitchens, restaurants, family gatherings, outdoor picnics and food prep areas. That list tells you who this is aimed at. The trade-off is documentation depth. The spec sheet highlights capacity, presets, the glass build and the viewable pot, but it doesn't publish a temperature floor and ceiling or a minute range the way the BYOIPLOI sheet does. If you're the type who wants to know exactly what the machine can be pushed to before you buy, that's a real gap.
Buy it if you want maximum glass-pot capacity for family sweet potato batches and you're happy leaning on presets. Skip it if you want published, wide-ranging manual control over temperature and time.
Side-by-Side: Which Should You Choose?
• Best for precise sweet potato control → BYOIPLOI 3.81QT. A documented 1–60 minute range and 176°F–392°F gives you room to nail cubes, fries and whole potatoes separately.
• Best for large sweet potato batches → HIPUDNLM 1200W. The larger 4.44Qt glass pot means fewer rounds when everyone wants fries.
• Best for watching the cook → tie. Both use 360° transparent borosilicate glass, so you can monitor browning without opening the pot.
• Best for family kitchens and gatherings → HIPUDNLM 1200W. Its stated use cases explicitly include family meals, parties and picnics.
• Best for preset-first cooking → HIPUDNLM 1200W. Eight modes including sweet potatoes, with adjustable settings if you want to tweak.
• Best for preset-plus-manual cooking → BYOIPLOI 3.81QT. Eight presets, but the published ranges let you go fully manual with confidence.
• Best for a bundled starter kit → HIPUDNLM 1200W. It includes the grill and an English manual in the box.
In my opinion, the BYOIPLOI 3.81QT is the better buy for anyone whose main goal is air fryer sweet potatoes. Sweet potatoes are unforgiving: undershoot the time and the centers stay firm, overshoot and the edges char before the middle softens. A published 176°F–392°F range and a 1–60 minute timer — plus a dedicated sweet potatoes preset to start from — give you the knobs to actually fix a batch that came out wrong. The HIPUDNLM 1200W is a genuinely good machine and I'd recommend it without hesitation to a bigger household that needs the larger pot, because capacity is the one thing you can't work around. But if you're cooking for a few people, I'd take the control. Check the current price on Amazon for both before you commit, since that's the one variable I can't weigh for you.
how to air fryer sweet potato cubes
Cut the sweet potatoes into roughly even cubes, toss them with a little oil, and spread them in a single layer in the glass pot so hot air can circulate around each piece. Use a high temperature on your fryer and shake or stir partway through. Because both units have a 360° glass pot, you can watch the edges caramelize and pull them when they look right.
how to air fryer sweet potato fries
Cut fries to a uniform thickness — thin fries cook fast and uneven fries cook unevenly. Both fryers include a French fries preset you can use as a starting reference, then adjust the time up or down. The BYOIPLOI 3.81QT lets you set anything from 1 to 60 minutes within its 176°F–392°F range, which makes fine-tuning fries straightforward.
Whole sweet potatoes need the longest cook of the three methods, so prick the skin a few times and plan on a moderate temperature for an extended time rather than high heat. Both machines have a sweet potatoes preset, and the BYOIPLOI 3.81QT's 60-minute maximum gives you plenty of headroom. The 360° glass view is genuinely useful here — you can see the skin tightening and the potato giving slightly without opening the pot.
Do these two air fryers cook sweet potatoes differently?
The core cooking setup is the same on paper: 1200W rapid heating, a borosilicate glass pot, a stainless steel grill for air circulation, and eight presets including sweet potatoes. The real differences are capacity (the HIPUDNLM states a larger 4.44Qt pot) and documentation (the BYOIPLOI publishes a full temperature and time range). Same technology, different priorities.
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See also: air fryer sweet potato fries, air fryer sweet potato, air fryer baked potato