Sizometry

  • Home
  • Devices
  • Comparisons
  • Tool
  • Insights
  • Methodology

Data sources and measurement methods are explained in our Methodology.

PrivacyTermsContact

Product names, trademarks, and registered trademarks belong to their respective owners. Sizometry is an independent reference site and is not affiliated with or endorsed by the manufacturers shown.

© 2026 Sizometry. All rights reserved.

Approach S70 42mm vs Forerunner 265S

Device summary

Garmin

Approach S70 42mm

Garmin

Forerunner 265S

Full specifications

Full specifications
Basic information
Release year20232023
Starting price——
Display size1.2-inch1.1-inch
Dimensions42.0 mm × 42.0 mm × 12.6 mm41.7 mm × 41.7 mm × 12.9 mm
Weight44 g39 g
Front material——
Back material——
Display
Display technologyAMOLEDAMOLED
Resolution390 × 390360 × 360
Battery & charging
Charging standardGarmin proprietary clip / USB chargingGarmin proprietary clip / USB charging
Battery typeLithium-ionLithium-ion
Connectivity
CellularGPS / multi-GNSSGPS / multi-GNSS
BluetoothBluetoothBluetooth
NFCYesYes
Build & durability
FramePolymer case; ceramic bezelFiber-reinforced polymer
Ingress protection5 ATM5 ATM

Basic information

Release year

Approach S70 42mm
2023
Forerunner 265S
2023

Starting price

Approach S70 42mm
—
Forerunner 265S
—

Display size

Approach S70 42mm
1.2-inch
Forerunner 265S
1.1-inch

Dimensions

Approach S70 42mm
42.0 mm × 42.0 mm × 12.6 mm
Forerunner 265S
41.7 mm × 41.7 mm × 12.9 mm

Weight

Approach S70 42mm
44 g
Forerunner 265S
39 g

Front material

Approach S70 42mm
—
Forerunner 265S
—

Back material

Approach S70 42mm
—
Forerunner 265S
—

Display

Display technology

Approach S70 42mm
AMOLED
Forerunner 265S
AMOLED

Resolution

Approach S70 42mm
390 × 390
Forerunner 265S
360 × 360

Battery & charging

Charging standard

Approach S70 42mm
Garmin proprietary clip / USB charging
Forerunner 265S
Garmin proprietary clip / USB charging

Battery type

Approach S70 42mm
Lithium-ion
Forerunner 265S
Lithium-ion

Connectivity

Cellular

Approach S70 42mm
GPS / multi-GNSS
Forerunner 265S
GPS / multi-GNSS

Bluetooth

Approach S70 42mm
Bluetooth
Forerunner 265S
Bluetooth

NFC

Approach S70 42mm
Yes
Forerunner 265S
Yes

Build & durability

Frame

Approach S70 42mm
Polymer case; ceramic bezel
Forerunner 265S
Fiber-reinforced polymer

Ingress protection

Approach S70 42mm
5 ATM
Forerunner 265S
5 ATM

Key differences

The most meaningful measured gaps in size and weight — not an overall winner.

  • Weight

    Forerunner 265S

    5 g lighter · minor difference

  • Thickness

    Approach S70 42mm

    0.3 mm thinner · minor difference

  • Height

    Very similar height

  • Width

    Very similar width

View Approach S70 42mm detailsView Forerunner 265S details

Dimensions and weight are based on manufacturer specifications. Handling estimates are derived from physical measurements. Methodology