Is It Worth Upgrading to the New Echo Dot (4th Generation)?

Echo Dot 4th generation – The smartest entry-level speaker

Should I buy the Echo Dot 4th generation with clock? I need a good alarm, will this be the one? - Quora

Echo Dot (4th Gen) Review: Good Upgrade but the Competition Is Getting Hotter - MySmartPrice

Echo Dot 4th Gen With Clock Alexa, Display Blue - Smart Speaker / Caixa de Som - Magazine Luiza

rolls out new ball-shaped Echo Dots, starting at $50 - The Verge

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Echo Dot (4th Gen) review: A bit better, a bit worse

Echo Dot 4th Generation, Full Review