Garmin (Nasdaq: GRMN) is expected to report Q3 earnings on Oct. 31. Here's what Wall Street wants to see:

The 10-second takeaway
 Comparing the upcoming quarter to the prior-year quarter, average analyst estimates predict Garmin's revenues will shrink -0.7% and EPS will wither -14.1%.

The average estimate for revenue is $662.3 million. On the bottom line, the average EPS estimate is $0.61.

Revenue details
 Last quarter, Garmin reported revenue of $718.2 million. GAAP reported sales were 6.5% higher than the prior-year quarter's $674.1 million.

Source: S&P Capital IQ. Quarterly periods. Dollar amounts in millions. Non-GAAP figures may vary to maintain comparability with estimates.

EPS details
 Last quarter, non-GAAP EPS came in at $0.98. GAAP EPS of $0.95 for Q2 were 70% higher than the prior-year quarter's $0.56 per share.

Source: S&P Capital IQ. Quarterly periods. Non-GAAP figures may vary to maintain comparability with estimates.

Recent performance
 For the preceding quarter, gross margin was 61.7%, 1,390 basis points better than the prior-year quarter. Operating margin was 31.3%, 1,180 basis points better than the prior-year quarter. Net margin was 25.9%, 970 basis points better than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $2.80 billion. The average EPS estimate is $2.88.

Investor sentiment
 The stock has a two-star rating (out of five) at Motley Fool CAPS, with 4,343 members out of 4,780 rating the stock outperform, and 437 members rating it underperform. Among 1,071 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 969 give Garmin a green thumbs-up, and 102 give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Garmin is outperform, with an average price target of $49.23.

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