Alpha JX2 vs TOTO Washlet S5
The Alpha Bidet JX2 and the TOTO Washlet S5 sit at opposite ends of the value spectrum — but both are tankless, which means neither one runs out of warm water mid-use. At roughly $389–$499, the JX2 has held a spot on every major bidet "best of" list for years, including CNN Underscored's top pick for five consecutive years. The S5 sits closer to $680–$780 and carries TOTO's decades-long reputation as the gold standard of the category — it's Wirecutter's best bidet seat pick as of 2025.
What separates them is less about core wash quality and more about the extras layered on top. The S5 brings EWATER+ electrolyzed-water wand sanitizing, four saved user presets, a built-in air deodorizer, and a sealed lid-to-seat junction that has no gap for grime to collect. The JX2 counters with a longer warranty (3 years vs. 1 year on the S5), a bowl pre-mist feature, an LED night light, a stainless steel nozzle, and a sittable lid — all at a price roughly $250–$300 less. If you spend the savings and break even on one repair call, the JX2's warranty math gets very compelling.
Neither unit is a slam dunk for everyone. The JX2's dryer draws consistent criticism for being on the slower side — most owners still keep a square or two of paper nearby. The S5's dryer shows measurably improved airflow over older TOTO models, and TOTO's brand support network is wider if you need service. For households where the toilet gets heavy daily use from multiple people, the two products diverge most sharply on the hygiene automation features and user-preset system — areas where TOTO's engineering investment is clearly visible.
| Alpha Bidet JX2 | TOTO Washlet S5 | |
|---|---|---|
| Price (elongated, street) | ~$389–$499 | ~$680–$780 |
| Water heating | Tankless, endless warm water | Tankless (instantaneous), endless warm water |
| Dryer | Warm air dryer; adjustable temp; frequently noted as slow in owner reviews | Warm air dryer; 5 temp settings; improved airflow over prior TOTO models |
| Hygiene/self-cleaning | Bowl pre-mist; stainless steel nozzle | EWATER+ electrolyzed water mists wand before and after each use; CLEAN RESIN coating on wand and seat |
| Air deodorizer | Not included | Included |
| User presets | Not included | 4 saved memory profiles (position, temp, pressure) |
| Warranty | 3 years | 1 year |
| Notable extras | LED night light; sittable lid (up to 300 lbs); slim profile; bowl pre-mist | PREMIST; 4-user preset remote; sealed lid-seat junction; Wirecutter Best Pick 2025 |
When to choose each
Choose the Alpha Bidet JX2 if you want a proven tankless bidet with a longer warranty at a price that's $250–$300 less than the S5. It's a strong fit for a single user or couple who care most about endless warm water, a stainless steel nozzle, and the peace of mind of a 3-year warranty — and are okay patting dry with a small amount of paper since the dryer underperforms relative to the S5.
Read the full review →Choose the TOTO Washlet S5 if multiple people share the toilet and each wants saved settings, or if hands-off hygiene automation matters to you — the EWATER+ wand sanitizing and built-in deodorizer are not available on the JX2. It's also the better fit if you want TOTO's established brand support and Wirecutter's top recommendation, and you're willing to pay the premium for those features.
Read the full review →Our verdict
Frequently asked questions
Are both the Alpha JX2 and TOTO S5 truly tankless?
Yes. Both use instantaneous (on-demand) water heating, so warm water lasts as long as your wash does. Neither has the 30–60 second warm-water limit you get with tank-style bidet seats.
Is the JX2 dryer good enough to skip toilet paper entirely?
Probably not for most people. Owner reviews consistently describe the JX2's dryer as functional but slow. Many users keep a small amount of paper nearby for a quick finish. The S5's dryer has higher airflow and draws fewer complaints, though it's still not as fast as a dedicated hand dryer.
What does EWATER+ actually do on the TOTO S5?
On the S5, EWATER+ mists the spray wand with electrolyzed water before and after every use, which inhibits bacterial growth without chemicals. It does not mist the bowl on the S5 — that's a feature reserved for higher S7 models.
The JX2 has a 3-year warranty versus the S5's 1 year — does that matter?
It depends on your risk tolerance. The JX2's 3-year warranty is one of the strongest in its price class and a real advantage. TOTO is a large company with broad dealer support, so service options exist, but the warranty period itself is shorter. For a $700+ purchase, TOTO's 1-year coverage is worth noting before you buy.
Can both seats fit a round toilet?
Yes. Both the Alpha JX2 and TOTO Washlet S5 are available in round and elongated versions. Verify your toilet shape before ordering — elongated is the more common fit for modern toilets.
Which is easier to install?
Both connect to your existing water supply via a T-valve with no new plumbing required, and both use a side-mounting bracket system. Difficulty is comparable — most owners report a 30–45 minute installation. The JX2's slim profile makes fitting it on one-piece toilets slightly easier, according to owner notes.