What is the revenue per MSM for the 5G segment in 2021
e're at in that adoption curve of 5G already? And then kind of just trying to parse it together, you're not getting MSM guidance anymore, but I mean, are we already pretty close to that kind of run rate for 5G on a quarterly basis?
Cristiano Amon -- President
Blayne, this is Cristiano. When you think about China market, we're very happy because the price points of 5G became very aggressive, and we saw that even starting in the last quarter, and that's driving probably more than 50% of all the new activations and all of the new phone launches with 5G. We like that position. As Akash outlined in the prior question, we're very well hedged regardless of who wins in the marketplace.
And we expect the China-accelerated transition of 5G with lower price points to have an impact in how we're going to see this unfolding in emerging markets as China provide a lot of the handsets for emerging markets as well.
Akash Palkhiwala -- Executive Vice President and Chief Financial Officer
And then also just to add, that we are providing an additional data point on the 5G side on the total size of the market for 2021. We are forecasting a range of 450 million to 550 million devices, which really, when you look at a year-over-year basis, that's 150% growth. So extremely strong growth going into it. And as we exit the calendar year 2020, we're seeing that velocity going into '21.
Blayne Curtis -- Barclays -- Analyst
And then a follow-up. Just really appreciate the segment detail. When you look at IoT, you answered why it's spiking up so much. I'd be curious to know a little bit more about the history of that segment.
It looks like you kind of model it back to the details you gave, it's been running around $700 million a quarter. So I'm just trying to put in perspective the strength you're seeing here, and how to think about it going forward. Obviously, everybody is seeing a big work-from-home push. But as you move forward, does some of that roll off? Or has this business been at higher levels prior? Just any context would be great.
Akash Palkhiwala -- Executive Vice President and Chief Financial Officer
Yes. So if you look at the disclosure we have on our website, we're providing detail for fiscal '19 on an annual basis and '20 on a quarterly basis. And so I think there's enough data there for you to kind of come up with some trends on the business. And then maybe I'll go back to our Analyst Day commentary last year, we outlined growth and a vision forecast for the IoT segment.
And so you could think about it the same way, where you'll be able to look at how the SAM grows and the parts of that SAM that we are interested in and how that grows, and that would be a good way of thinking about the long-term opportunity.
Cristiano Amon -- President
Blayne, it's Cristiano. If I could add some qualitative comments. As you pointed out, there is this enterprise transformation of the home. It's driving a lot of connectivity.
You also have an accelerated digital transformation. But most importantly, you have 5G going to other industries. So this business and what it is today is probably a good proxy of a growth business for us as we realize this vision of 5G and other industries going forward.
Blayne Curtis -- Barclays -- Analyst
Thank you.
Operator
Our next question comes from Ross Seymore with Deutsche Bank. Please proceed with your question.
Ross Seymore -- Deutsche Bank -- Analyst
Guys, thanks for letting me ask a question and a follow up. Congrats on the strong results. The first one is I think everybody appreciates the end market splits that you're going to have. But before the MSMs and the revenue per MSMs disappear for good, it's great to see that you've gotten it back above $30 on the revenue per MSM side.
I just wanted to dive into, looking forward, does the 1.5 times content framework continue? Or is that $30 largely capturing it? And really, I guess what I'm getting at is if you're going to have 150% increase in your 5G units next year, is that going to be a tailwind on both the unit and the revenue per MSM side? Or more so one than the other
e're at in that adoption curve of 5G already? And then kind of just trying to parse it together, you're not getting MSM guidance anymore, but I mean, are we already pretty close to that kind of run rate for 5G on a quarterly basis?
Cristiano Amon -- President
Blayne, this is Cristiano. When you think about China market, we're very happy because the price points of 5G became very aggressive, and we saw that even starting in the last quarter, and that's driving probably more than 50% of all the new activations and all of the new phone launches with 5G. We like that position. As Akash outlined in the prior question, we're very well hedged regardless of who wins in the marketplace.
And we expect the China-accelerated transition of 5G with lower price points to have an impact in how we're going to see this unfolding in emerging markets as China provide a lot of the handsets for emerging markets as well.
Akash Palkhiwala -- Executive Vice President and Chief Financial Officer
And then also just to add, that we are providing an additional data point on the 5G side on the total size of the market for 2021. We are forecasting a range of 450 million to 550 million devices, which really, when you look at a year-over-year basis, that's 150% growth. So extremely strong growth going into it. And as we exit the calendar year 2020, we're seeing that velocity going into '21.
Blayne Curtis -- Barclays -- Analyst
And then a follow-up. Just really appreciate the segment detail. When you look at IoT, you answered why it's spiking up so much. I'd be curious to know a little bit more about the history of that segment.
It looks like you kind of model it back to the details you gave, it's been running around $700 million a quarter. So I'm just trying to put in perspective the strength you're seeing here, and how to think about it going forward. Obviously, everybody is seeing a big work-from-home push. But as you move forward, does some of that roll off? Or has this business been at higher levels prior? Just any context would be great.
Akash Palkhiwala -- Executive Vice President and Chief Financial Officer
 Yes. So if you look at the disclosure we have on our website, we're providing detail for fiscal '19 on an annual basis and '20 on a quarterly basis. And so I think there's enough data there for you to kind of come up with some trends on the business. And then maybe I'll go back to our Analyst Day commentary last year, we outlined growth and a vision forecast for the IoT segment.
And so you could think about it the same way, where you'll be able to look at how the SAM grows and the parts of that SAM that we are interested in and how that grows, and that would be a good way of thinking about the long-term opportunity.
Cristiano Amon -- President
Blayne, it's Cristiano. If I could add some qualitative comments. As you pointed out, there is this enterprise transformation of the home. It's driving a lot of connectivity.
You also have an accelerated digital transformation. But most importantly, you have 5G going to other industries. So this business and what it is today is probably a good proxy of a growth business for us as we realize this vision of 5G and other industries going forward.
Blayne Curtis -- Barclays -- Analyst
Thank you.
Operator
Our next question comes from Ross Seymore with Deutsche Bank. Please proceed with your question.
Ross Seymore -- Deutsche Bank -- Analyst
Guys, thanks for letting me ask a question and a follow up. Congrats on the strong results. The first one is I think everybody appreciates the end market splits that you're going to have. But before the MSMs and the revenue per MSMs disappear for good, it's great to see that you've gotten it back above $30 on the revenue per MSM side.
I just wanted to dive into, looking forward, does the 1.5 times content framework continue? Or is that $30 largely capturing it? And really, I guess what I'm getting at is if you're going to have 150% increase in your 5G units next year, is that going to be a tailwind on both the unit and the revenue per MSM side? Or more so one than the other