Apple’s iPhone 7 now accounts for 1% of overall iPhone market share while the iPhone 7 Plus represents 0.2%, according to research firm Localytics. That roughly matches sales for last year’s iPhone 6s, which captured a 1% market share during its first weekend of availability, while the iPhone 6s plus, introduced at the same time, achieved a 0.3% share.

However, the iPhone 6 captured a higher market share after its first weekend debut in 2014, suggesting that it was a bigger seller. It had a 2% market share while the iPhone 6 Plus, which was introduced at the same time, had a 0.3% share, according to Localytics.

This weekend’s weaker results may be a bit misleading, however. Localytics says that iPhone 7 demand is significant and suggests that its sales would have been stronger had Apple made more supply available. Apple has said that demand was stronger than expected for iPhone 7 Plus, leading to supply shortages. The same holds true for its jet black iPhone 7 model.

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“Given that all iPhone 7 models and the jet-black version of the iPhone 7 Plus sold out in pre-orders, there is a demand for these models that was not seen in previous years,” Localytics said in a statement.

Apple’s (AAPL) iPhone 7 went on sale on Friday. While the interest led to some lines outside some Apple stores, many people had instead already preordered their phones.

In fact, the iPhone 7 Plus was fully sold out online before the smartphone became available in stores, leaving only iPhone 7 units on store shelves.

Apple’s limited supply was apparent on Sept. 9, when the iPhone 7 went on preorder. Just hours after going on sale, supplies had run out and shipment dates were pushed back. Just three hours later, the jet black iPhone 7’s shipment date was pushed back to November.

Analysts had raised questions about consumer interest in the iPhone 7 before it went on sale. While the phone comes with an updated design, an improved camera, and faster processors, its headphone jack has been removed, requiring owners to either use Bluetooth headphones or an adapter that comes in the box and allows them to employ wired headphones through the smartphone’s Lightning port. Reports also say that Apple is planning a major upgrade to the iPhone next year, which could make some customers wait for 2017.

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In addition to analyzing how well the iPhone 7 performed in its first week, Localytics detailed the current market share of all iPhones models. The iPhone 6 is still the most popular with a 31% market share among all iPhone owners followed by the iPhone 6s with 21% market share and the 5s at 15%. With its 1% share, the iPhone 7 is now tied with relatively ancient iPhone 4. The iPhone 7 Plus’ 0.2% market share makes it the lowest share of all models.

One other tidbit from the Localytics study: Apple’s iOS 10, it latest mobile operating system, was running on 26% of all iOS devices after it became available six days ago. Last year, the company’s iOS 9 reached 31% adoption in its first six days.

The Localaytics data comes from an analysis of more than 70 million iOS devices. The iPhone portion of the study was conducted between Sept. 16 and Sept. 18 while iOS adoption was evaluated between Sept. 13 and Sept. 18.