SodaStream Jet vs Fizzi: Which One Should You Buy?

If you’re choosing between the SodaStream Jet and the SodaStream Fizzi, my short answer is this: buy the SodaStream Fizzi if you are buying new or want the easiest everyday machine to live with. It is newer, easier to load, easier to find, and better supported.

The SodaStream Jet still makes perfectly good sparkling water, and I would not call it a bad machine. If you find one very cheap, especially used, it can be a solid buy. But for most homes, the Fizzi is the safer choice because the bottle connection is more convenient, the design feels more current, and replacement bottles/accessories are easier to sort out.

I went through this comparison after getting tired of hauling cases of seltzer into the house every week. I wanted something simple that would sit on the counter, not need electricity, and not turn into another appliance I regretted buying. After using and researching both, the biggest thing I learned is that the Jet and Fizzi carbonate water in basically the same way. The real difference is convenience, availability, and how much patience you have for an older design.

Which is better: SodaStream Jet or Fizzi?

The SodaStream Fizzi is better for most people. It is easier to use, has a cleaner bottle-loading system, and is the model I would choose for a main kitchen soda maker today.

The SodaStream Jet is best if you want the cheapest possible entry into home carbonation and you do not mind an older, more basic design. It uses the same general concept: a CO2 cylinder carbonates plain cold water in a reusable bottle. The sparkling water itself will not be dramatically different if you use the same water temperature and carbonation technique.

Here is the quick comparison:

What is the real difference between the SodaStream Jet and Fizzi?

The biggest everyday difference is how the bottle attaches.

On the SodaStream Jet, the bottle typically screws into place. It works, but you have to line it up and twist it in. That is not difficult, but if you use the machine several times a day, it can feel a little dated.

On the SodaStream Fizzi, the bottle uses a snap-lock style connection. You push the bottle into place instead of fully screwing it in. This sounds like a small difference until you are making sparkling water while cooking dinner, packing lunch, or trying to fill a bottle quickly before leaving the house.

In my kitchen, convenience matters more than I expected. A soda maker is only useful if people actually use it. If the machine feels fussy, it slowly becomes a counter ornament. The Fizzi has the edge because it feels more like a current appliance and less like something you have to wrestle with.

Other differences are less dramatic:

• Both are manual machines. You press the button yourself to control carbonation.
• Both use CO2 cylinders. Most Jet and Fizzi machines use the standard blue screw-in SodaStream cylinder.
• Both carbonate water only. Syrup, juice, fruit, or flavoring should be added after carbonation.
• Both work best with very cold water. Cold water holds carbonation better than room-temperature water.
• Neither makes sparkling water automatically. If you want push-button preset fizz levels, you would look at something like the Fizzi One Touch, not the regular Fizzi.

Does the Fizzi make better sparkling water than the Jet?

No, not in a meaningful way. If both machines are working properly, they can both make crisp, fizzy water.

The fizz level comes down more to your technique than the model:

• Use cold water from the refrigerator.
• Fill only to the marked fill line.
• Press the carbonation button in short, firm bursts.
• Do not overfill the bottle.
• Do not carbonate anything except plain water.

One common mistake is expecting either machine to taste exactly like canned seltzer from the store on the first try. Store-bought sparkling water is often very consistently carbonated under commercial conditions. With a manual SodaStream, you control the fizz yourself. After a few tries, you get a feel for how many presses you like.

For my taste, three firm presses usually gives a moderate fizz. More presses can create a sharper, bubblier drink, but there is a point where you are wasting gas without getting much more benefit. That is true on both the Jet and the Fizzi.

If your water tastes flat, the machine may not be the problem. More often, it is one of these issues:

• The water was too warm.
• The CO2 cylinder was almost empty.
• The bottle was not seated correctly.
• The carbonation button was pressed too lightly.
• The drink sat open too long before serving.

Is the SodaStream Jet still worth buying?

The SodaStream Jet is worth buying only in the right situation. I would consider it if:

• You find it at a very low price.
• It comes with a valid CO2 cylinder.
• The machine is clean and not damaged.
• You are comfortable using an older model.
• You do not care about having the newest design.

For example, if a neighbor was selling a clean Jet at a garage sale for a small amount, I would not dismiss it. The Jet is simple, and simple appliances can last a long time when treated well. There is no motor to burn out and no power cord to lose.

But I would be more cautious buying a used Jet online. Photos do not always show wear around the bottle connection, the carbonation nozzle, or the back panel where the CO2 cylinder goes. Also, older bottles may be expired or worn out. SodaStream bottles have expiration dates because they are used under pressure. If a used Jet comes with old bottles, plan on replacing them.

The Jet makes the most sense for someone who wants the lowest-cost way to try making sparkling water at home. If you are not sure you will stick with it, a cheap Jet can be a low-risk test.

Where I would not choose the Jet is as a full-price purchase. If the price is close to a Fizzi, the Fizzi is the better buy.

Is the SodaStream Fizzi worth the extra money?

Yes, the Fizzi is usually worth paying a bit more for, especially if this will be your main sparkling water maker.

The Fizzi feels better for daily use. The snap-lock bottle loading is faster, the design is slimmer, and it is generally easier to find in stores or online. If you are buying for a family kitchen, these small conveniences add up.

I also like that the Fizzi does not need electricity. I have enough things fighting for outlets around the coffee maker, toaster, air fryer, and phone chargers. A manual soda maker that can sit anywhere on the counter is a real advantage.

The Fizzi is not perfect. The body is mostly plastic, and it still requires you to buy or exchange CO2 cylinders. It also does not magically make soda cheaper if you use a lot of branded syrups and go through gas quickly. But for plain sparkling water, it is one of the more practical home options.

The Fizzi is the one I would recommend if you:

• Drink sparkling water often.
• Want a simple machine without electricity.
• Prefer easy bottle loading.
• Are buying new.
• Want easier access to current accessories and support.

Do the SodaStream Jet and Fizzi use the same CO2 cylinders?

Most SodaStream Jet and regular SodaStream Fizzi machines use the standard blue screw-in CO2 cylinder. This is important because SodaStream now also sells machines that use the newer pink Quick Connect cylinders.

Do not assume every SodaStream cylinder fits every SodaStream machine. This is one of the most common mistakes people make.

Here is the simple version:

• Jet: usually uses the blue screw-in cylinder.
• Fizzi: usually uses the blue screw-in cylinder.
• Terra, Art, Duo, E-Terra: commonly use the pink Quick Connect cylinder.

If you already have blue screw-in cylinders at home, that makes the Jet and Fizzi more appealing. If you already have a newer pink Quick Connect cylinder, it will not work in a Jet or regular Fizzi without unofficial adapters, and I do not recommend relying on adapters for a pressurized gas appliance.

Before buying, especially used, check the back of the machine and the cylinder style. A seller may simply say “comes with SodaStream tank,” but that does not guarantee it is the right one for the model.

What about bottle compatibility?

Bottle compatibility is another area where shoppers get tripped up. SodaStream has made different bottle styles over the years, and not every bottle fits every machine.

The Jet commonly uses bottles that screw into the machine. The Fizzi uses bottles designed for its snap-lock system. Some SodaStream plastic bottles may work across multiple models, but glass carafes do not work in the Jet or Fizzi. Glass bottles are for specific models such as the Aqua Fizz, Crystal, Penguin, or Duo, depending on the region and version.

The safest approach is to buy bottles listed as compatible with your exact model.

Also, check whether the bottle is dishwasher-safe. Many older SodaStream plastic bottles are not dishwasher-safe and can warp if exposed to high heat. Dishwasher-safe SodaStream bottles are usually clearly labeled.

At home, I keep two or three bottles in rotation. One is chilling in the refrigerator, one is being used, and one is clean. That matters because cold water carbonates better. If you fill a room-temperature bottle and carbonate immediately, the result is usually less satisfying.

Which one is cheaper to own?

The machine price is only one part of the cost. The ongoing cost is CO2 refills or exchanges, plus bottles if you need extras.

The Jet can be cheaper upfront if you buy it used or on clearance. The Fizzi usually costs more than a secondhand Jet but may be a better value if it comes with a new cylinder, new bottle, and warranty coverage.

Ongoing costs are similar because both use CO2 cylinders. SodaStream often estimates one standard cylinder can carbonate up to 60 liters of water, but real-world results vary. If you like aggressive carbonation, you will use gas faster. If you make lightly sparkling water, the cylinder lasts longer.

Here is where people sometimes overestimate the savings. If you drink plain seltzer, a SodaStream can reduce bottle and can waste and may save money over time. If you buy lots of syrups, flavor drops, extra bottles, and replacement cylinders without exchanging them, savings shrink.

For our household, the biggest benefit was not just cost. It was convenience. We stopped storing bulky cases of sparkling water, and the recycling bin filled up more slowly. That was worth a lot on its own.

Which machine is easier to clean and maintain?

Both machines are fairly low-maintenance because the machine itself should only touch water and CO2. You should not run syrup or flavored drinks through either model.

Basic maintenance is simple:

• Wipe the machine with a damp cloth.
• Keep the carbonation nozzle clean.
• Wash bottles by hand unless they are labeled dishwasher-safe.
• Let bottles dry fully before capping them for storage.
• Replace bottles when they reach their expiration date or show damage.

The biggest cleaning mistake is adding syrup before carbonation. This can cause foaming, leaks, sticky residue, and a mess inside the machine. Always carbonate plain water first, then add flavor slowly after.

If you want flavored sparkling water, pour the syrup or flavoring down the side of the tilted bottle after carbonating. Cap it and gently roll the bottle to mix. Do not shake it like a cocktail unless you enjoy cleaning counters.

Who should buy the SodaStream Jet?

Buy the SodaStream Jet if your priority is spending as little as possible and you are okay with an older model.

The Jet makes sense for:

• College apartments or first apartments.
• Occasional sparkling water drinkers.
• People buying secondhand locally.
• Anyone who already owns compatible blue screw-in cylinders.
• Someone who does not mind screwing the bottle into place.

I would inspect a used Jet carefully. Look for cracks, missing parts, a damaged nozzle, or a loose back cover. Ask whether the cylinder is included and whether it is empty. Also check the bottles. If they are old, cloudy, warped, or past the expiration date, replace them.

If the Jet is only slightly cheaper than a new Fizzi, I would skip it. The savings are not enough to justify the older design.

Who should buy the SodaStream Fizzi?

Buy the SodaStream Fizzi if you want the better everyday experience and a machine that is easy to recommend without many warnings.

The Fizzi is better for:

• Families that drink sparkling water regularly.
• People who want a no-electricity soda maker.
• Small kitchens where counter space matters.
• Anyone buying new rather than used.
• People who want easier bottle insertion.

The Fizzi is also a good choice for someone who is not especially patient with appliances. That may sound minor, but it matters. If the machine is easy, people use it. If it is annoying, they go back to buying cans.

The only reason I would avoid the Fizzi is if you specifically want a machine that uses glass bottles, automatic carbonation presets, or the newer pink Quick Connect cylinder system. In that case, you may want a different SodaStream model entirely.

What should you check before buying either one?

Before buying the Jet or Fizzi, I would check five things:

1. Which CO2 cylinder does it use?

Make sure it uses the cylinder you expect. Most Jet and Fizzi machines use blue screw-in cylinders, but always confirm before buying.

2. Are compatible bottles included?

A machine without bottles is not ready to use. If bottles are included, check their expiration dates and condition.

3. Is the machine new or used?

Used can be fine, but price it accordingly. A used soda maker with no usable bottle and no gas cylinder may not be much of a bargain.

4. Do you want manual or automatic carbonation?

The regular Fizzi and Jet are manual. If you want preset fizz levels, look at electric models such as the Fizzi One Touch instead.

5. How often will you use it?

If you drink sparkling water daily, get the Fizzi. If you only want to experiment, a cheap Jet can be enough.

My recommendation after comparing the Jet and Fizzi

If I were buying today for my own kitchen, I would buy the SodaStream Fizzi. It gives you the same basic sparkling water result as the Jet, but the day-to-day experience is better. The easier bottle loading alone makes it the more pleasant machine to keep on the counter.

The SodaStream Jet is still worth considering if the price is low and the machine is in good condition. It is a basic, capable soda maker. I just would not pay close to Fizzi money for it.

Here is the practical buying advice:

• Buy the Fizzi if you want the best overall choice for regular home use.
• Buy the Jet only if it is significantly cheaper and you are comfortable with an older design.
• Skip both if you want glass bottles, automatic presets, or a machine that uses pink Quick Connect cylinders.

FAQ: SodaStream Jet vs Fizzi

Is the SodaStream Jet discontinued?

The SodaStream Jet is an older model and is often unavailable as a current mainstream retail option in many places. You may still find it through used listings, older inventory, or third-party sellers. That is one reason I prefer the Fizzi for most buyers.

Does the SodaStream Fizzi need electricity?

No. The regular SodaStream Fizzi is manual and does not need electricity or batteries. You press the top button to carbonate the water. Do not confuse it with the Fizzi One Touch, which is an electric model with preset carbonation levels.

Can I use Jet bottles with the Fizzi?

Some SodaStream plastic bottles may be compatible across certain models, but you should check the exact bottle type and machine compatibility. The Jet typically uses a screw-in bottle system, while the Fizzi uses snap-lock loading. Do not force a bottle that does not seat properly.

Can either machine carbonate juice, wine, or flat soda?

No. Carbonate plain water only. Add syrup, juice, flavor drops, or fruit after carbonation. Carbonating anything other than water can cause foaming, leaks, sticky residue, and possible damage.

Which one makes fizzier water?

Neither has a major advantage if both are working correctly. Fizziness depends more on water temperature, CO2 level, and how many carbonation presses you use. Cold water gives the best result.

Do both use the same SodaStream gas cylinder?

Most SodaStream Jet and regular Fizzi machines use the standard blue screw-in CO2 cylinder. Newer SodaStream models may use pink Quick Connect cylinders, which are not the same. Always check before buying.

Is the Fizzi better than the Jet for a small kitchen?

Yes, I think so. The Fizzi has a slimmer, more modern shape and is easier to use quickly. Since neither machine needs electricity, you can place either one almost anywhere, but the Fizzi feels more counter-friendly.

Is a used SodaStream Jet safe to buy?

It can be, as long as the machine is clean, undamaged, and used with proper SodaStream bottles and cylinders. Replace old or expired bottles. Avoid any machine with cracks, missing parts, or signs that the CO2 connection has been modified.

Which one should I buy if they are the same price?

Buy the Fizzi. If the Jet and Fizzi cost the same, the Fizzi is the better value because it is newer, easier to use, and generally better supported.