Apple Watch SE (1st Gen) 40mm vs Apple Watch Series 10 42mm

Side-by-side comparison of specifications and features

AppleWatch SE (1st Gen) 40mm

AWSE1-40

AppleWatch Series 10 42mm

AWS10-42

Key Differences

Best Value

Apple Watch SE (1st Gen) 40mm (AWSE1-40)

Starting from $279

Slimmest

Apple Watch Series 10 42mm (AWS10-42)

9.7mm thick

Price Comparison

Apple Watch SE (1st Gen) 40mm

MSRP

$279

Apple Watch Series 10 42mm

MSRP

$399

MSRP New (Amazon) Used (eBay)

Comparison of Apple Watch SE (1st Gen) 40mm, Apple Watch Series 10 42mm
Specification	Apple Watch SE (1st Gen) 40mmSmartwatch	Apple Watch Series 10 42mmSmartwatch
Pricing
MSRP	$279	$399
New Price	N/A	N/A
Used Price (Low)	N/A	N/A
Used Price (High)	N/A	N/A
30-Day Trend	N/A	N/A
Used Price Range	N/A	N/A
Identity
Reference	AWSE1-40	AWS10-42
Nickname	N/A	N/A
Style	Smartwatch, Digital	Smartwatch, Digital
Release Era	N/A	N/A
Dimensions
Diameter	40mm	42mm
Thickness	10.7mm	9.7mm
Lug Width	N/A	N/A
Lug to Lug	N/A	N/A
Movement
Movement	Quartz	Quartz
Power Reserve / Battery	N/A	N/A
Accuracy	N/A	N/A
Case
Case Material	Titanium	Titanium
Crystal	Mineral Crystal	Sapphire Crystal
Water Resistance	50m (swimming)	50m (swimming)
Bezel	N/A	N/A
Dial
Dial Color	N/A	N/A
Luminous	No	No
Community
Review Rating	N/A	N/A
In Collections	N/A	N/A
On Wishlists	N/A	N/A
Forum Threads	N/A	N/A

Quick Summary

Apple Watch SE (1st Gen) 40mm and Apple Watch Series 10 42mm can overlap on price or use case, but the buying decision usually comes down to wrist presence versus easier fit. They both touch the smartwatch and digital use case, so smaller spec differences can matter more than brand preference.

How to choose

The biggest practical difference is usually movement and upkeep. Start with wrist fit and movement preference, then use water resistance and price to break the tie.

Apple Watch SE (1st Gen) 40mm

Apple Watch SE (1st Gen) 40mm is a better fit for smaller wrists, low-maintenance daily wear, smartwatch styling.

Apple Watch Series 10 42mm

Apple Watch Series 10 42mm is a better fit for buyers who want more wrist presence, low-maintenance daily wear, smartwatch styling.

Key Differences

Movement and upkeep

Apple Watch SE (1st Gen) 40mm: quartz movement

Apple Watch Series 10 42mm: quartz movement

Both use the same movement type, so maintenance differences are limited and fit or feature details should decide the purchase.

Size and wearability

Apple Watch SE (1st Gen) 40mm: 40mm

Apple Watch Series 10 42mm: 42mm

Fit is a real separator here — compare case width and lug-to-lug before deciding, especially if wrist comfort matters more than headline features.

Water resistance

Apple Watch SE (1st Gen) 40mm: 50m

Apple Watch Series 10 42mm: 50m

Water resistance is similar on paper, so focus on fit, features, and price instead.

Price and value

Apple Watch SE (1st Gen) 40mm: $279

Apple Watch Series 10 42mm: $399

There is a real price gap here — treat the more expensive option as an upgrade decision and confirm whether the extra spend buys something you will notice in weekly use.

Style and use case

Apple Watch SE (1st Gen) 40mm: smartwatch

Apple Watch Series 10 42mm: smartwatch

Both lean into a similar smartwatch use case — the choice is more about fit, features, and price than category.

Crystal and materials

Apple Watch SE (1st Gen) 40mm: mineral crystal · titanium

Apple Watch Series 10 42mm: sapphire crystal · titanium

Crystal choice can change long-term wear expectations — one may prioritize scratch resistance while the other keeps cost or vintage feel in check.

Choose Apple Watch SE (1st Gen) 40mm If...

You want a smaller case footprint on the wrist.
You want the lower current entry price.

Choose Apple Watch Series 10 42mm If...

You prefer more dial presence and a larger case feel.
You are comfortable paying more for a stronger feature set.

Price and Value Notes

Apple Watch SE (1st Gen) 40mm is often the value play at current pricing, while Apple Watch Series 10 42mm makes more sense if you will use its extra features regularly.

There is a real price gap here — treat the more expensive option as an upgrade decision and confirm whether the extra spend buys something you will notice in weekly use.

Where to Check Deals

Check current deals on Amazon and eBay using the buttons below — listing prices, seller quality, and condition can change quickly.

Check current eBay listings

eBay listing prices and condition mix can change day to day, so it is worth checking live results.

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Apple Watch SE (1st Gen) 40mm

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Apple Watch Series 10 42mm

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Comparison FAQ

Which one is better for smaller wrists?

Start with case width and lug-to-lug. The watch that looks smaller on paper is often the safer choice, but lug shape and thickness still affect how it wears.

Which is better for swimming or rough daily wear?

Use the water resistance row as the first filter. Higher ratings generally give more flexibility for swimming and water exposure, but strap choice and overall condition still matter.

Should I choose based on price alone?

Price matters, but the better buy is the watch that matches your fit, feature priorities, and use case. Check live listings first, then decide whether the price gap actually changes the ownership experience.