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Smartwatches / Compare

Apple Watch Series 10 vs Apple Watch Ultra

61 of 141 fields differ

Download CSVDownload JSON
  • 31 different values
  • 30 known for one only
  • 36 the same
  • 44 missing for both

Biggest differences

Each bar uses the scale of all 101 smartwatches.

  1. Battery lifeA: 18hB: 36hWatch Ultra is 18 h higher.
  2. Water resistanceA: 5ATMB: 10ATMWatch Ultra is 5 ATM higher.

Size, drawn to scale

Front and side.

Weight

0 to 80 g

Weight (case only)
A30g
B61.3g

All 150 fields

Every value links to where we found it.

AApple Watch Series 10
BApple Watch Ultra

General

6 of 10 differ
GTIN / EAN
Not available
Not available
Status
Not available
Not available
Predecessor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
OS updates promised
Not available
Not available
Security updates until
Not available
Not available

Case

6 of 8 differ
Case size
Case material
Back
Not available
Weight with strap
Not available
Not available

Durability

7 of 8 differ
Max dive depth
Not available
MIL-STD-810
Not available

Display

9 of 14 differ
Display type (as published)
Screen size
Not available
Not available
Pixel density
Not available
Max refresh rate
Not available
Not available
Peak brightness

Platform

5 of 15 differ
Software
Not available
Not available
Phone requirement
Launch: iPhone XS or later, including iPhone SE (2nd generation or later), with iOS 18. Current watchOS 27 requires iPhone 11 or later, or iPhone SE (2nd generation or later), with iOS 27.1Maker product pagesupport.apple.com/en-us/121202Read 5 October 20268Maker product pageapple.com/os/watchosRead 5 October 2026
iPhone 8 or later with iOS 16 or later at launch. The launch release also names iPhone SE (2nd generation) or later.1Maker product pagesupport.apple.com/en-us/111852Read 10 October 2026Footnote 16: requires iPhone 8 or later with iOS 16 or later.
Process
Not available
Not available
CPU configuration
Not available
Not available
Max CPU clock
Not available
Not available
GPU
Not available
Not available
Low-power coprocessor
Not available
Not available

Memory

1 of 2 differ
RAM
Not available
Not available
Storage

Health sensors

2 of 8 differ
Body composition sensor
Not available
Not available
Skin conductance (EDA)
Not available
Not available

Motion and environment sensors

3 of 9 differ

Health and fitness

2 of 5 differ
Health features
Blood oxygen app, ECG app, Cycle tracking, Temperature-based ovulation, Heart rate alerts, Irregular rhythm notifications, Noise monitoring, Sleep tracking, Sleep stages, Sleep apnea notifications, Hypertension notifications, Heart rate variability1Maker product pagesupport.apple.com/en-us/121202Read 5 October 2026Exact current supported functions. Newer sleep apnea, Vitals, sleep score and hypertension notifications are separately software-qualified. Country, age and phone restrictions remain material. Maker-supported Medications, Mindfulness, Vitals and later Sleep Score have no exact enum option and are retained here only. No nearest health category is substituted.9Maker product pagesupport.apple.com/en-us/123002Read 5 October 2026Sleep score and hypertension notifications are later software. Not borrowed as original launch promises. Maker-supported Medications, Mindfulness, Vitals and later Sleep Score have no exact enum option and are retained here only. No nearest health category is substituted.10Press releaseapple.com/newsroom/2024/09/watchos-11-is-available-todayRead 5 October 2026Sleep apnea notifications for eligible adults 18+ without prior diagnosis. Vitals and training-load functions are current software additions. Ultra 2 did not launch with watchOS 11. Maker-supported Medications, Mindfulness, Vitals and later Sleep Score have no exact enum option and are retained here only. No nearest health category is substituted.19Maker product pagesupport.apple.com/guide/watch/blood-oxygen-apdaf17aa5ef/watchosRead 5 October 202620Maker product pageapple.com/watchos/feature-availabilityRead 5 October 2026Current maker availability lists independently checked for the represented US and Germany markets. ECG, Blood Oxygen, sleep apnea notifications and hypertension notifications depend on supported model, software, region and individual eligibility. The affected US Blood Oxygen workflow is qualified by the dedicated maker guide.
Sport profiles
Not available
Not available
Dive modes
Not available
Not available
External sensors
Not available
Not available

Safety

1 of 6 differ
Fall detection
Emergency SOS
Emergency siren
Not available
Live location sharing
Not available
Not available
Dedicated LED flashlight
Not available
Not available

Positioning

3 of 3 differ
Positioning
Dual-band GNSS
Not available

Connectivity

3 of 15 differ
Bluetooth
Not available
Wi-Fi
Not available
4G bands
Not available
Not available
5G bands
Not available
Not available
Satellite
Not available
Not available
ANT+
Not available
Not available

Audio

1 of 4 differ
Music on the watch
Not available
Not available

Controls

4 of 5 differ
Rotating bezel
Not available
Not available

Battery and charging

4 of 13 differ
Battery capacity
Not available
Not available
Claimed battery life
Smartwatch mode (claimed)
18h
36h
AOD battery life (up to)
Not available
Not available
GPS mode (claimed)
Not available
Not available
Solar charging
Not available
Not available
Charging guidance
Not available
Not available
Max charging power (watch)
Not available
Not available
Fast charging
Quick charge claim
Not available
Full charge time (claimed)
Not available
Not available

Measured

None of 4 known
Peak brightness (measured)
Not available
Not available
Battery life (measured)
Not available
Not available
Battery tests (measured)
Not available
Not available
Full charge time (measured)
Not available
Not available

Strap

2 of 6 differ
Lug width
Not available
Not available
Quick-release strap
Not available
Strap system
Not available
Not available
Strap material
Not available
Not available
Strap
Not available
Not available
Strap sizes
BApple Watch Ultra
Not available

Regulatory

None of 3 known
FCC ID
Not available
Not available
SAR limb (US)
Not available
Not available
SAR limb (EU)
Not available
Not available
Other certifications
Not available
Not available

In the box

1 of 2 differ

Warranty

1 of 1 differ
Manufacturer warranty (source market)
Not available

Both are also in the API. Back to all smartwatches.