Piper Jaffray analysts weigh in on the technology giant Apple Inc. (NASDAQ:AAPL) and action camera giant GoPro Inc (NASDAQ:GPRO), with mixed ratings and views.

Apple Inc.

In a research report issued today, Piper Jaffray analyst Gene Munster reiterated an Overweight rating on shares of Apple, with a price target of $179, following media reports claiming that Apple is working on a 4″ iPhone 6C to launch in early 2016.

Munster wrote, “Our supply checks this week indicate similar data. While we have some skepticism about whether this product actually gets launched, the reality is that whether the device is real or not doesn’t matter. We would not expect Apple to sell significantly more iPhone 6C devices than the typical low-end model (currently the 5S) and would also not expect margins to be significantly different. Further, we surveyed 1,077 US consumers and only 20% said they preferred the 4″ smartphone screen size. We continue to believe that the most important story for Apple is the iPhone Upgrade Program and moving to annual device upgrades.”

However, “The iPhone 6C could fall into the same trap of the iPhone 5C. The main feature of the 5C was color (it was the mid-tier device at $549), which turned out to be undesirable for most consumer since they put a case on their phones. The main feature of the possible 6C is smaller size when we just went through the biggest upgrade cycle in iPhone history with the 6 and 6 Plus driven by larger size.”

According to TipRanks.com, which measures analysts’ and bloggers’ success rate based on how their calls perform, analyst Gene Munster has a total average return of 24% and a 69.5% success rate. Munster has a 25.1% average return when recommending AAPL, and is ranked #1 out of 3631 analysts.

Out of the 50 analysts polled by TipRanks, 37 rate Apple stock a Buy, 11 rate the stock a Hold and 2 recommend a Sell. With a return potential of 25.5%, the stock’s consensus target price stands at $148.43.

GoPro Inc

GoPro shares are down 3.38% to $18.25 in early trading Friday, after Ambarella, a chip maker with close ties to GoPro provided fourth-quarter guidance that came in below the Street. In reaction, Piper Jaffray analyst Erinn Murphy lowered her Q4 sales estimate on GoPro.

Murphy wrote, “Ambarella is a key supplier of video compression and image processing semiconductors for GoPro. While AMBA’s Q3 revenue bested expectations, management provided Q4 guidance well below consensus tied to softness in the wearable sports camera market. We believe this is related to softness in GoPro currently. Our correlation analysis between GPRO revenue and AMBA revenue on a one quarter lag suggests downside to GoPro’s Q4 revenue. We are lowering our estimates for Q4 and beyond. On the conference call, management indicated they have substantial increases in inventory in the sports camera market which will take until 1H of next year to clear.”

“We lowering our Q4 15 sales estimate from $488M to $472M based on the correlation analysis, and EPS moves from $0.34 to $0.28. Additionally, our FY16 sales estimate goes from $1,588M to $1,573M and EPS moves from $1.03 to $0.97,” the analyst added.

Murphy reiterated an Underweight rating on GoPro, with a price target of $15, which reflects a potential downside of 18% from last closing price.

According to TipRanks.com, Murphy has a total average return of -9.1% and a 30.9% success rate. Murphy has a -34.1% average return when recommending GPRO, and is ranked #3565 out of 3631 analysts.

Out of the 15 analysts polled by TipRanks in the last 3 months, 8 rate GoPro stock a Buy, while 6 rate the stock a Hold and one sees the stock underperforming  the market. With a return potential of 119.44%, the stock’s consensus target price stands at $40.18.