{"id":911463,"date":"2026-09-30T21:42:11","date_gmt":"2026-09-30T21:42:11","guid":{"rendered":"https:\/\/www.newsbeep.com\/au\/911463\/"},"modified":"2026-09-30T21:42:11","modified_gmt":"2026-09-30T21:42:11","slug":"apple-watch-se-3-vs-series-12-buyers-guide-which-should-you-buy","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/au\/911463\/","title":{"rendered":"Apple Watch SE 3 vs. Series 12 Buyer’s Guide: Which Should You Buy?"},"content":{"rendered":"

The Apple Watch SE 3<\/a> starts at $249, while the Apple Watch Series 12<\/a> starts at $399. The $150 difference buys a more advanced health sensing system, a larger display, longer battery life, and more options for tracking training and recovery.<\/p>\n

\"Apple
The two watches still share many features, including an always-on display, wrist temperature sensing, sleep apnea notifications, retrospective ovulation estimates, 5G connectivity on cellular models, media playback, and 64GB of storage. Our guide helps to answer the question of how to decide which of these two Apple Watch models is best for you. The differences between the two models are as follows:<\/p>\n

\u200cApple Watch SE 3\u200c
\nApple Watch Series 12<\/p>\n

Same design as Apple Watch Series 4, 5, and 6
\nRefined design with a thinner casing, display with more rounded edges and a wider aspect ratio, and front glass that extends further over the sides for a higher screen-to-body ratio<\/p>\n

40mm or 44mm case
\n42mm or 46mm case<\/p>\n

Aluminum case
\nAluminum, titanium, or ceramic case<\/p>\n

40mm: 40 by 34 by 10.7mm
44mm: 44 by 38 by 10.7mm
\n42mm aluminum\/titanium: 42 by 37 by 9.7mm
46mm aluminum\/titanium: 46 by 40 by 9.7mm
42mm ceramic: 43 by 37 by 9.85mm
46mm ceramic: 47 by 41 by 9.85mm<\/p>\n

Aluminum GPS weight: 26.3 grams (40mm) or 32.9 grams (44mm)
\nAluminum GPS weight: 32.2 grams (42mm) or 39.5 grams (46mm)<\/p>\n

Ion-X front glass
\nCeramic Shield 2 front on aluminum models; sapphire crystal front on titanium and ceramic models<\/p>\n

No published IP6X rating
\nIP6X dust resistance<\/p>\n

LTPO OLED<\/a> display
\nLTPO3 display with a 1Hz always-on refresh rate, allowing a live ticking seconds hand on supported watch faces<\/p>\n

\u200cOLED\u200c display
\nWide-angle \u200cOLED\u200c display<\/p>\n

40mm: 324 by 394 pixels
44mm: 368 by 448 pixels
\n42mm: 374 by 446 pixels
46mm: 416 by 496 pixels<\/p>\n

40mm: 759 sq mm display area
44mm: 977 sq mm display area
\n42mm: 970 sq mm display area
46mm: 1,196 sq mm display area<\/p>\n

Up to 1,000 nits brightness
\nUp to 2,000 nits brightness<\/p>\n

2 nits minimum brightness
\n1 nit minimum brightness<\/p>\n

Nylon composite and sapphire crystal back
\nAluminum or titanium and zirconia back; ceramic and zirconia back on ceramic models<\/p>\n

S10 chip (2024)
\nS11 chip (2026)<\/p>\n

2GB RAM
\n4GB RAM<\/p>\n

Second-generation optical heart sensor
\nAlways-on optical heart sensor<\/p>\n

Standard background heart rate tracking
\nBackground heart rate readings every five seconds<\/p>\n

Heart rate variability tracking
\nRecovery HRV and more frequent overall HRV readings<\/p>\n

Vitals app with heart rate, respiratory rate, wrist temperature, and sleep duration
\nVitals app with heart rate, respiratory rate, wrist temperature, sleep duration, HRV, and a daytime view<\/p>\n

Readiness app<\/p>\n

Electrical heart sensor and ECG app<\/p>\n

Blood oxygen sensor and Blood Oxygen app<\/p>\n

Hypertension notifications<\/p>\n

Standard step tracking
\nImproved step tracking<\/p>\n

Real-time heart rate and steps watch face complications<\/p>\n

Water temperature sensor<\/p>\n

Depth gauge to 6 meters and Depth app<\/p>\n

Oceanic+ app for snorkeling to 6 meters, available on the App Store<\/a><\/p>\n

Audio Intelligence features including Siri<\/a> Recap, Sound Recognition, and Shazam<\/p>\n

Live Rewind and \u200cSiri\u200c Recap, due in beta in late 2026<\/p>\n

Microphone
\nMicrophone with Voice Isolation<\/p>\n

Single, elongated speaker openings
\nIndividual speaker holes<\/p>\n

2.4GHz Wi-Fi 4
\n2.4GHz and 5GHz Wi-Fi 4<\/p>\n

L1 GPS
\nPrecision L1 GPS<\/p>\n

Second-generation Ultra Wideband chip<\/p>\n

Find iPhone
\nPrecision Finding for iPhone, with distance and direction guidance<\/p>\n

HomePod<\/a> playback controls
\n\u200cHomePod\u200c playback controls and proximity-based media suggestions with a compatible Ultra Wideband \u200cHomePod\u200c<\/p>\n

Up to 18 hours of normal use
\nUp to 24 hours of normal use<\/p>\n

Up to 32 hours in Low Power Mode
\nUp to 38 hours in Low Power Mode<\/p>\n

Up to 7 hours of workout tracking
\nUp to 10 hours of workout tracking<\/p>\n

Charges from 0 to 80% in about 45 minutes
\nCharges from 0 to 80% in about 30 minutes<\/p>\n

15 minutes of charging for up to 8 hours of normal use
\n15 minutes of charging for up to 12 hours of normal use<\/p>\n

8 minutes of charging for up to 8 hours of sleep tracking
\n5 minutes of charging for up to 10 hours of sleep tracking<\/p>\n

Midnight and Starlight aluminum finishes
\nDark Bronze, Light Gold, Black, and Space Gray aluminum finishes<\/p>\n

Radiant Gold and Natural titanium finishes<\/p>\n

Pearl White and Night Blue ceramic finishes<\/p>\n

Silver and Radiant Gold titanium Herm\u00e8s models<\/p>\n

40mm: $249 GPS or $299 GPS + Cellular
44mm: $279 GPS or $329 GPS + Cellular
\nAluminum 42mm: $399 GPS or $499 GPS + Cellular
Aluminum 46mm: $449 GPS or $549 GPS + Cellular<\/p>\n

Titanium models start at $699; ceramic models start at $899<\/p>\n

If you mainly want a smart watch for notifications, standard workout and sleep tracking, and an always-on display, the \u200cApple Watch SE 3\u200c remains the better value. Although it is now a year old, it still represents excellent value for money at $249, offering most of the Apple Watch’s core features for $150 less than the entry-level Series 12.<\/p>\n

The Apple Watch Series 12 has a much stronger case for anyone who uses their device to follow health and recovery trends. Its new Health Sensing System<\/a> enables frequent heart rate readings, Recovery HRV, and a Readiness score that draws on recent activity, training load, vitals, and sleep. ECG, blood oxygen monitoring, and hypertension notifications add further capabilities unavailable on the \u200cApple Watch SE 3\u200c.<\/p>\n

Battery life may be a decisive factor. The Apple Watch Series 12 is rated for six more hours of normal use and three more hours of outdoor workout tracking. It also charges faster, which is particularly useful if you wear your watch overnight for sleep tracking.<\/p>\n

The Series 12 also offers a larger and brighter display, which makes a noticeable difference in daily use, along with 5GHz Wi-Fi, Precision Finding for a misplaced iPhone, and premium titanium and ceramic case options. Its Audio Intelligence<\/a> features include \u200cSiri\u200c Recap, Sound Recognition, and always-on Shazam.<\/p>\n

If you prefer the Series 12’s broader health tracking capabilities, longer battery life, display advantages, or luxury case options, the extra cost is justified. If those features are unlikely to change how you use or appreciate your watch, the \u200cApple Watch SE 3\u200c is the more economical choice.<\/p>\n","protected":false},"excerpt":{"rendered":"The Apple Watch SE 3 starts at $249, while the Apple Watch Series 12 starts at $399. The…\n","protected":false},"author":2,"featured_media":911464,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[16556,89286,64,63,125225,952,213,105],"class_list":["post-911463","post","type-post","status-publish","format-standard","has-post-thumbnail","category-gadgets","tag-apple-watch","tag-apple-watch-se","tag-au","tag-australia","tag-buyers-guide","tag-featured","tag-gadgets","tag-technology"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts\/911463","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/comments?post=911463"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/posts\/911463\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/media\/911464"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/media?parent=911463"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/categories?post=911463"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/au\/wp-json\/wp\/v2\/tags?post=911463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}