Simplera or Instinct with the MiniMed 780G: which sensor should you choose?
Fifteen days without changing a sensor. A sensor that is smaller and warms up faster. Sounds fantastic, right?
I currently use the MiniMed 780G in combination with the Simplera Sync. And I'm actually quite satisfied with it. But since the launch of the Instinct sensor, I've become curious.
Because if you only have to replace a sensor half as often, why not switch?
Only... is it really that simple?
I asked the question on Instagram and received quite a few responses. From people who are extremely satisfied with their Instinct, but also from people who have just switched back to the Simplera.
And that really got me thinking.
I therefore delved not only into the technical differences and scientific research, but also collected your experiences. Because what sounds fantastic on paper is not necessarily the best choice for everyone.
Simplera Sync vs. Instinct: what are the differences?
Both sensors work with the MiniMed 780G insulin pump and SmartGuard.
Personally, I consider the latter to be one of the biggest advantages of my pump. The sensor continuously transmits glucose values, after which SmartGuard can automatically adjust the insulin delivery.
When I think back to my first years with diabetes, when I was still using insulin pens, it really is a world of difference.
But although the technology has done so much for us in the meantime, there are of course practical differences between sensors.
| Feature | Simplera Sync | Instinct |
|---|---|---|
| Manufacturer | MiniMed (formerly Medtronic) | Abbott |
| Compatible with MiniMed 780G | Yes | Yes |
| Maximum wear time | 6 days + 24 hours extra | 15 days |
| Warm-up time | 2 hours | 1 hour |
| Calibration | No routine calibration | No routine calibration |
| Sensor and transmitter | All-in-one | All-in-one |
| Size | Larger | Smaller and thinner |
| SmartGuard | Yes | Yes |
On paper, the Instinct therefore seems to have a few clear advantages.
But how does that work in daily life?
1. Fifteen days without changing a sensor. That's something I'm excited about!
Let me start with what personally appeals to me the most: the lifespan.
The Simplera Sync has a normal wear time of six days, with another 24 hours extra. The Instinct, on the other hand, can be worn for up to fifteen days.
Fifteen days!
Just to put that into perspective for a full year, if you always get the maximum wear time:
- Simplera Sync: approximately 52 sensor changes.
- Instinct: approximately 25 sensor changes.
That's about 27 fewer sensor changes per year.
And although replacing a sensor is no longer hours of work, I still think that's a nice difference.
Because that's something people without diabetes may not always realize: it's not just the big things that require energy.
It's also all those small tasks. Replacing a sensor, changing a catheter, filling reservoirs, counting carbohydrates, checking alarms...
The less we have to deal with that, the better.
But there is, of course, an important condition: that sensor must also continue to work well and stay on for fifteen days.
And I received very different reactions about that.
2. Staying on for fifteen days: is that possible without an extra adhesive patch?
A sensor that lasts fifteen days naturally sounds fantastic. But it also has to stay on your skin for fifteen days. 😉
And that's exactly what I was particularly curious about your experiences with.
Because anyone who has followed Tinsulin for a while knows that my webshop actually originated from my own search for solutions for sensors that do not always stay on well.
So I know all too well that what stays on perfectly for one person may start coming loose after a few days for someone else.
And that also appeared in your reactions.
One follower said that her Instinct stays on excellently, while she normally has problems with other sensors.
But I also received the opposite experience: in other reactions I read that the Instinct actually comes loose faster.
And that doesn't really surprise me. Your skin, the place where you wear the sensor, exercising, sweating, swimming... It all plays a role.
Personally, I also think an extra protective patch is no unnecessary luxury, especially when you want to wear a sensor for as long as possible. Not because everyone needs it, but because such a patch can give that extra little bit of certainty.
And let's be honest: if your sensor still works perfectly, but comes loose after ten days, that's still quite frustrating.
For those who want some extra protection, we at Tinsulin also have protective patches for the Instinct sensor.
Whether you need one depends entirely on your skin and how well your sensor stays on by itself.
My conclusion for now? The longer wear time of the Instinct really appeals to me. But I'm mainly curious whether it will also stay on well for fifteen days for me. With or without an extra patch.
3. One hour of warming up instead of two
Another difference that appeals to me: the warm-up time.
With the Simplera Sync, you have to wait two hours before your new sensor transmits glucose values. With the Instinct, it's only one hour.
Now I'm not going to claim that those two hours completely turn my life upside down.
But once you're used to a pump that continuously thinks along and automatically adjusts, a period without sensor data still feels different.
By now, I'm quite spoiled by my MiniMed 780G. 😉
And rightly so, because the technology has evolved enormously in recent years.
One hour less without up-to-date sensor data therefore seems like a nice advantage to me.
4. Smaller and more discreet: does that really make a difference?
The Instinct is smaller and thinner than the Simplera Sync.
And although I absolutely do not think we should hide our diabetes materials, it is of course nice if they get in the way as little as possible.
For example, I like wearing clothes. And anyone who has worn a pump and sensors for a while knows that not every outfit is equally practical.
A smaller sensor that is less likely to get caught behind clothes? I do see advantages in that.
Several followers also spontaneously mentioned the small size as one of the biggest plus points of the Instinct.
Someone who had only been using the sensor for a week said that the glucose graph was quite unstable at the beginning, but that she immediately liked the small size.
And that brings us to something I think might be even more important than size or wear time.
5. How reliable are the glucose values?
Because let's be honest: a sensor can be as small as you like and last fifteen days, but if you don't trust the glucose values, there's little use for it.
And it was precisely about this that I received a striking number of reactions.
Some users are extremely satisfied
A follower who previously used the Guardian 4 said that she is a huge fan of the Instinct.
She does occasionally see double arrows, short interruptions, or a message that the sensor values are being updated. But according to her, they usually disappear within a few minutes.
She especially considers the small size, the adhesive strength, and the frequent glucose updates to be major advantages.
Another user said that she had to get used to it for the first few weeks, but is now extremely satisfied.
Those are, of course, nice experiences to read.
But others switched back to Simplera
At the same time, I received several messages from people who were less satisfied.
A follower said that she had tried the Instinct for two weeks, but had a lot of trouble with low glucose value alerts that did not match her actual glucose value.
Another parent said that their daughter used the Instinct for a while, but eventually switched back to the Simplera because the Instinct indicated false hypos too often.
And I received another detailed message from parents who were experiencing the same thing.
With their daughter, the sensor values sometimes turned out quite different from the values they checked with a finger prick. They said that in one case the difference was even about 100 mg/dL.
The nights also seemed less stable according to them. With the Simplera, they are experiencing calmer nights again and more confidence in the values.
That last point stuck with me.
Because a night in which you have to continuously check whether a hypo alarm is correct is, of course, anything but relaxing.
Especially when it concerns your child.
And it's not just about the alarm itself. With an automatic insulin system, reliable glucose values are extra important, because the pump uses that information to adjust the insulin delivery.
When a sensor incorrectly transmits a low value, this can therefore also have consequences for the automatic insulin delivery.
That is an important consideration for me when it comes to a potential switch.
It obviously does not mean that the Instinct gives unreliable values for everyone. The experiences are too varied for that.
But I do think it is important to honestly take these reactions into account.
6. What does scientific research say about Simplera and Instinct?
In addition to your personal experiences, I also wanted to know what has been scientifically investigated.
In May 2026, a study was published in the journal Diabetes Technology & Therapeutics, in which 24 adults with type 1 diabetes were studied.
The participants used both sensors during separate six-week periods, each in combination with the MiniMed 780G.
The results were strikingly close.
| Result | Simplera Sync | Instinct |
|---|---|---|
| Average Time in Range | 80.6% | 79.1% |
| HbA1c at the end of the study period | 6.8% | 6.7% |
For those who are not familiar with Time in Range: that is the percentage of the time that your glucose values are within a certain target range. In this study, that was between 70 and 180 mg/dL (3.9 and 10.0 mmol/L).
The researchers concluded that both sensors yielded comparable results in terms of glucose control.
That is reassuring in itself.
But there are some important nuances.
Firstly, it was a small study. Secondly, Time in Range says something about overall glucose control with the pump, not directly about the accuracy of the sensor.
And thirdly: averages naturally do not tell how every individual user experiences the sensor.
That explains why the research results can be positive, while some users still experience problems.
One does not exclude the other.
Scientific source: Laron-Hirsch, M. et al. (2026). Glycemic Concordance of Simplera Sync and Instinct Sensors in MiniMed 780G System Users: A Randomized Crossover Feasibility Study. Diabetes Technology & Therapeutics. View the publication on PubMed.
7. Sensor failures and an unstable glucose graph
Another thing that came up regularly in the reactions: the glucose graph of the Instinct sometimes looks different than users are used to.
Some people talk about a more unstable graph, double trend arrows, or short periods in which the sensor does not transmit new values.
One user said that this was mainly something to get used to at the beginning.
Another follower sometimes notices short interruptions of a few minutes, but does not find them disruptive.
Important to know: the Instinct and Simplera do not process and transmit their glucose data in exactly the same way. Therefore, the graph can look different.
So a more unstable graph does not automatically mean that your glucose values are less reliable.
But when a sensor repeatedly indicates low values that do not match a finger prick, that is, of course, a different story.
In case of doubt, it remains important to check your glucose with a blood glucose meter and discuss any recurring problems with your diabetes team.
8. And what about the Simplera itself?
With all the reactions about the Instinct, you would almost forget that the Simplera also does not work without problems for everyone.
For example, a follower said that her Simplera sensors often stopped working after just three or four days.
She also had to deal with delivery problems, which meant that replacement sensors, according to her, did not always arrive on time.
That seems particularly frustrating to me.
Because a sensor that should normally last almost a week, but regularly fails after a few days, naturally also causes extra work and uncertainty.
It shows once again that there is no single sensor that works perfectly for everyone.
Where one person is extremely satisfied with the Simplera, someone else experiences a lot of problems with it.
And apparently the same applies to the Instinct.
9. Can you just switch from Simplera to Instinct?
Not entirely.
Although both sensors are compatible with the MiniMed 780G, your pump must have the right software to be able to use the Instinct.
In addition, you need to check how the delivery and refund are arranged through your diabetes agreement.
That also came up in the reactions. A follower said that she is still using the Simplera at the moment because her pump first needs an update.
So I would definitely recommend discussing a potential switch with your diabetes team first.
Especially when you are currently satisfied with your sensor, it seems wise not to change too hastily.
Frequently asked questions about Simplera and Instinct
What is the biggest difference between Simplera Sync and Instinct?
The biggest difference is the wear time. The Simplera Sync lasts a maximum of seven days, while the Instinct can be worn for up to fifteen days. The Instinct is also smaller and has a shorter warm-up time.
Is the Instinct more accurate than the Simplera?
There is no convincing evidence that the Instinct is more accurate for every user. A small comparative study showed comparable results in terms of glucose control. Personal experiences can differ.
Does the Instinct give false hypos more often?
Several users reported false hypos and deviating glucose values in my Instagram poll. Other users were very satisfied. Based on these reactions, we cannot conclude that the Instinct generally causes false hypos more often.
How long does the Instinct take to warm up?
The Instinct takes one hour to warm up, compared to two hours for the Simplera Sync.
Can I use the Instinct with my MiniMed 780G?
Yes, provided your pump is compatible and you have the required software. Discuss switching with your diabetes team.
Which sensor stays on better?
This varies from person to person. Some users find the adhesive strength of the Instinct excellent, while others report that it comes off sooner.
My conclusion: why I'm sticking with Simplera for now
After all your responses, I think I've made up my mind. For now, I'm sticking with my trusted Simplera Sync.
Not because the Instinct doesn't appeal to me. Quite the opposite! Fifteen days of wear time, a smaller size, and a shorter warm-up time... I definitely see the benefits.
But if there is one thing that is really important to me, it is trust in my sensor.
I don't want to have to think all day about whether the glucose reading I see on my pump is correct. Or doubt whether I'm really low, or whether my sensor is trying to tell me something.
Honestly, I have neither the time nor the inclination for that. 😉
Diabetes already requires enough attention. And that's exactly why I'm so happy with my MiniMed 780G. It takes a lot of the thinking out of my hands, so I don't have to constantly worry about my glucose levels.
But then, of course, I need to be able to trust the information my sensor provides.
And in that regard, I'm actually quite happy with my Simplera.
Is everything perfect? Absolutely not.
Even with me, a sensor occasionally fails earlier than it should. And then, of course, you have to request a replacement sensor from Medtronic.
Only then do you also have to keep a close eye on whether that replacement is actually delivered. I still have a few in reserve, so this is also a reminder to myself to call Medtronic again. 😅
So there are certainly areas for improvement. But if I have to estimate, I'm still about 80% satisfied with my Simplera.
And I think that's actually a pretty good starting point.
By the way, I completely understand that people who constantly experience problems with their Simplera are motivated to try the Instinct. If your sensors regularly fail early or you don't trust the readings, then the motivation to look for something else is naturally much greater.
But that's not my situation at the moment.
If I change, I want to change to something that works better for me. Not just to something else.
And although the Instinct has a lot of advantages on paper, your varied experiences have still led me to decide to wait a little longer.
Maybe I'll try it later after all. Who knows!
But for now, I'm sticking with my trusted Simplera. Not perfect, but a sensor I feel good about and can generally rely on.
And ultimately, that is worth much more to me than those extra eight days of wear time.
Because no matter how fantastic all this new diabetes technology is, the ultimate goal remains the same for me: to have to deal with diabetes as little as possible, so that as much space as possible is left for everything else. 💜
And now I'm curious about you!
Do you use the MiniMed 780G with the Simplera Sync or the Instinct?
Or have you tried both?
Feel free to let me know what your experience is. Maybe you're extremely satisfied with the Instinct, maybe you've switched back to Simplera.
All experiences are welcome!
Because ultimately we all want the same thing: reliable technology that makes our lives with diabetes a little easier.
Patches or stickers for your sensor
Whatever sensor you wear, in the webshop you'll find:
- Patches for the Instinct
- Sensor stickers for the Instinct
- Patches for the Simplera
- Sensor stickers for the Simplera
This blog combines personal experiences, product information, and scientific research. The shared user experiences are not a representative scientific study. Always discuss changes to your diabetes technology with your diabetes team.