SNT vs ALRM vs DGLY vs ZBRA vs AMZN

For growth investors, Amazon.

com, Inc. (AMZN) is the stronger pick with 12. 4% revenue growth year-over-year, versus -30. 4% for Digital Ally, Inc. (DGLY). Alarm. com Holdings, Inc. (ALRM) offers the better valuation at 19. 3x trailing P/E (17. 3x forward), making it the more compelling value choice. Analysts rate Alarm. com Holdings, Inc. (ALRM) a "Buy" — based on 19 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Alarm.

com Holdings, Inc. (ALRM) is the cheapest at 19. 3x versus Amazon. com, Inc. at 38. 0x. On forward P/E, Zebra Technologies Corporation is actually cheaper at 12. 7x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Amazon. com, Inc. wins at 1. 12x versus Alarm. com Holdings, Inc. 's 1. 74x — a reasonable growth-adjusted valuation.

Over the past 5 years, Amazon.

com, Inc. (AMZN) delivered a total return of +70. 9%, compared to -100. 0% for Digital Ally, Inc. (DGLY). Over 10 years, the gap is even starker: AMZN returned +702. 2% versus DGLY's -100. 0%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Senstar Technologies Ltd.

(SNT) is the lower-risk stock at 0. 44β versus Digital Ally, Inc. 's 3. 66β — meaning DGLY is approximately 725% more volatile than SNT relative to the S&P 500. On balance sheet safety, Senstar Technologies Ltd. (SNT) carries a lower debt/equity ratio of 1% versus 127% for Alarm. com Holdings, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Amazon.

com, Inc. (AMZN) is pulling ahead at 12. 4% versus -30. 4% for Digital Ally, Inc. (DGLY). On earnings-per-share growth, the picture is similar: Senstar Technologies Ltd. grew EPS 298. 9% year-over-year, compared to -19. 6% for Zebra Technologies Corporation. Over a 3-year CAGR, AMZN leads at 11. 7% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Alarm.

com Holdings, Inc. (ALRM) is the more profitable company, earning 13. 1% net margin versus -101. 0% for Digital Ally, Inc. — meaning it keeps 13. 1% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ZBRA leads at 14. 8% versus -77. 4% for DGLY. At the gross margin level — before operating expenses — SNT leads at 64. 1%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Amazon. com, Inc. (AMZN) is the more undervalued stock at a PEG of 1. 12x versus Alarm. com Holdings, Inc. 's 1. 74x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, Zebra Technologies Corporation (ZBRA) trades at 12. 7x forward P/E versus 31. 4x for Amazon. com, Inc. — 18. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ZBRA: 37. 6% to $311. 00.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

For long-horizon retirement investors, Senstar Technologies Ltd.

(SNT) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 44)). Digital Ally, Inc. (DGLY) carries a higher beta of 3. 66 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (SNT: +38. 5%, DGLY: -100. 0%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

These companies operate in different sectors (SNT (Industrials) and ALRM (Technology) and DGLY (Industrials) and ZBRA (Technology) and AMZN (Consumer Cyclical)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.