Do you mean “latest” as of today (October 30, 2025)? I’ll assume yes — below I list the current flagship phone and watch families from the major makers (Apple, Samsung, Google) and the accessories that are compatible with those latest models (notes about special compatibility or connectors included). I cite official / reliable coverage for the device models I used so you can verify specifics.

Summary of the latest models (as of Oct 30, 2025)

• Apple iPhone 17 family (iPhone 17 / 17 Pro / 17 Pro Max / iPhone 17 Air) — Apple’s 2025 iPhone lineup. (indiatimes.com)
• Apple Watch Series 11, Apple Watch Ultra 3, Apple Watch SE 3 — Apple’s 2025 watch lineup. (Apple.com)
• Samsung Galaxy S25 series (S25, S25+, S25 Ultra) — Samsung’s 2025 flagship phones. (news.Samsung.com)
• Samsung Galaxy Watch 7 (latest major Galaxy Watch receiving One UI 8 / Wear OS 6 updates in 2025). (androidcentral.com)
• Google Pixel 10 family (Pixel 10, Pixel 10 Pro, Pixel 10 Pro XL, Pixel 10 Pro Fold) and Pixel Watch 4 (Pixel Watch 4 was introduced with the Pixel 2025 lineup). (9to5google.com)

Key accessory types and compatibility notes

1. Cases / Bumpers / Skins

• Apple iPhone 17 series: compatible with model‑specific cases (MagSafe-compatible cases work with MagSafe accessories and chargers). If you want wireless magnetic features (wallets, stands), buy MagSafe-certified cases. For rugged protection use model-specific heavy-duty cases (check size variant — Pro/Max differ). (indiatimes.com)
• Samsung Galaxy S25 series: use S25-specific cases (Slim, Rugged, Clear) sized to each S25 variant; many third-party cases support wireless charging and Samsung’s official ring/stand accessories. (samsungmobilepress.com)
• Google Pixel 10 series: Pixel has introduced “Pixelsnap” magnetic accessories for Pixel 10 — use Pixel 10 specific cases if you want magnetic alignment for Pixelsnap chargers and stands. Fold models require foldable‑specific cases. (9to5google.com)

2. Screen protectors

• Buy model-specific protectors (glass or film) sized to each phone variant (Pro / Ultra and foldables need special protectors). For foldables, only buy protectors explicitly made for that foldable model.

3. Chargers and cables

• Apple iPhone 17: modern iPhones continue using Lightning or USB‑C depending on Apple’s 2025 decisions — verify your exact iPhone 17 variant (some 2025 reporting indicated USB‑C adoption across iPhone 17 series in many markets). Use Apple‑certified USB‑C (or Lightning) fast chargers; MagSafe and Qi2 wireless chargers work with MagSafe‑compatible cases for magnetic alignment and optimal wireless speeds. (Check the connector on the box for your regional model.) (indiatimes.com)
• Samsung Galaxy S25: uses USB‑C with support for faster wired charging (Samsung announced faster wired and wireless charging improvements and Qi2 readiness). Use Samsung‑recommended PD chargers or third‑party USB‑C PD chargers rated for the phone’s max wattage; Qi2 / Qi wireless chargers work for wireless charging. (news.Samsung.com)
• Google Pixel 10: supports Qi2 wireless charging and Pixelsnap magnetic charger accessories (Google released a Pixelsnap charger and magnetic accessory ecosystem). Use USB‑C PD chargers for wired fast charging and Qi2‑certified chargers for best wireless results. (9to5google.com)

4. Magnetic wireless systems (MagSafe / Pixelsnap / Qi2)

• Apple MagSafe: if you want magnetic wallets, stands, car mounts, or faster aligned wireless charging, buy MagSafe-certified accessories sized to the iPhone 17 series. Not all MagSafe accessories work identically with non‑MagSafe phones. (Apple.com)
• Google Pixelsnap / Qi2: Pixel 10 introduced Pixelsnap magnetic accessories and Qi2 support — buy Pixelsnap-certified magnetic chargers/cases for magnetic alignment and Qi2 chargers for higher wireless speeds. (9to5google.com)
• Samsung: S25 family is Qi2-ready; many third‑party chargers and docks support Qi2. Samsung also offers official wireless chargers and stands designed for Galaxy phones. (news.Samsung.com)

5. Headphones / Earbuds

• Apple: AirPods Pro 3 and other Lightning/USB‑C wireless earbuds integrate tightly with iPhone features (spatial audio, Find My). AirPods and many Bluetooth earbuds work with all phones, but some features (Lossless via Lightning/USB‑C wired, automatic device switching) are Apple‑specific. (Apple.com)
• Samsung / Google: any Bluetooth earbuds work; Samsung Galaxy Buds and Google Pixel Buds add platform‑specific integrations (Fast Pair, codec optimizations). Pixel Buds and Galaxy Buds support device‑specific features noted in their announcements. (samsungmobilepress.com)

6. Watch bands, chargers, and docks

• Apple Watch Series 11 / Ultra 3 / SE 3: Apple’s watch bands are cross-compatible across many recent Apple Watch sizes, but check size (e.g., 40mm/44mm vs 41mm/45mm/49mm) — Ultra, Series and SE sizes differ. Apple Watch charges with Apple’s magnetic puck (USB‑C puck in 2025 lineup); third‑party docks exist but must support MagSafe‑style magnetic alignment for Apple Watch. Many third‑party bands fit Series 11 and Ultra 3 if they match the lug width/size. (Apple.com)
• Samsung Galaxy Watch 7: uses Samsung’s watch charger (magnetic puck with USB‑C) and the standard Galaxy band lug sizes — many third‑party bands and wireless charging docks are compatible if they mention Galaxy Watch 7 / Watch 4/5/6/7 compatibility. The One UI 8 / Wear OS 6 update does not change band compatibility. (androidcentral.com)
• Google Pixel Watch 4: uses a magnetic USB‑C charging puck similar to prior Pixel Watches; bands that fit Pixel Watch lugs are compatible. (9to5google.com)

7. Car mounts and wireless charging docks

• For magnetic mounts, use MagSafe (for iPhone) or Pixelsnap (for Pixel 10) certified mounts for secure magnetic hold and charging alignment. For Samsung and other Android phones, Qi2 magnetic mounts and Samsung’s official mounts are appropriate. Always confirm the mount supports the exact phone dimensions and wireless charging standard. (Apple.com)

8. Power banks & battery cases

• Use USB‑C PD power banks sized for your phone’s max charging input; many power banks now offer Qi2 wireless output for wireless charging. For Apple phones with MagSafe, MagSafe‑compatible power banks are available that magnetically attach and provide wireless charging. For Pixel 10, look for Pixelsnap‑compatible power banks. (9to5google.com)

9. Specialized accessories

• Camera lenses, gimbals, and cases: buy those explicitly labelled for your phone model (camera bump and lens alignment differ across models, especially Pro/Ultra and foldables).
• Screen‑to‑body differences (flat vs curved screens, foldable inner display) mean many tempered glass protectors are model-specific — use protectors made for the exact model.

Quick compatibility checklist (practical steps)

• Confirm the exact model name printed on the box or in Settings → About (e.g., “iPhone 17 Pro Max”, “Galaxy S25 Ultra”, “Pixel 10 Pro Fold”).
• For magnetic accessories: check whether the phone supports MagSafe (Apple) or Pixelsnap / Qi2 (Google) or Qi2 magnets (Samsung S25). Magnetic accessories are not universally interchangeable. (Apple.com)
• For wired charging: use USB‑C PD chargers for Samsung and Pixel; check whether your iPhone variant uses USB‑C or Lightning before buying cables. (samsungmobilepress.com)
• For watches: check case size and charging puck type; watch bands list which watch series/sizes they fit.

If you want, I can:

• Give a short shopping list of recommended accessories (specific models/brands) for one specific phone + watch (for example: iPhone 17 Pro + Apple Watch Series 11), or
• Look up a particular accessory type (best MagSafe chargers, best Qi2 wireless pads, best protective case for Galaxy S25 Ultra, etc.) with links and price/options.

Which device pair (or brand) should I focus on for a recommended accessories list?