Garmin Approach S70 vs Garmin fēnix 8 AMOLED (47 mm, Sapphire)

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Approach S70 compared with fēnix 8 AMOLED (47 mm, Sapphire)

	GarminApproach S70	Garminfēnix 8 AMOLED (47 mm, Sapphire)
Overview
Released
Released	May 2023	August 2024
Display
Case sizes
Case sizes	42 mm or 47 mm	47 mm
Panel
Panel	OLED	OLED
Always-on display
Always-on display	Yes	Yes
Display detail
Display detail	42 mm version has a 1.2 inch AMOLED touchscreen with 390 x 390 pixels; 47 mm has a 1.4 inch screen with 454 x 454 pixels. Optional always-on mode and ambient-light sensor. Three physical buttons. UK table pairs the 42 mm screen's 1.2 inch figure with 32.02 mm, an inconsistent conversion; neither value is silently recalculated here. Launch German datasheet also incorrectly repeats 390 x 390 for the 47 mm display; exact current model tables establish 454 x 454.	1.4-inch (35.56 mm) AMOLED touchscreen, 454 x 454 pixels, with optional always-on mode and leakproof inductive buttons.
Screen protection
Screen protection	Current UK and US model tables specify Corning Gorilla Glass 3. German launch article calls it sapphire, conflicting with its own attached Gorilla Glass datasheet; no sapphire configuration is established.	Sapphire crystal lens on this titanium edition.
Health and fitness
ECG
ECG	No	Yes
Blood oxygen
Blood oxygen	Yes	Yes
Skin temperature
Skin temperature	No	Yes
Sleep apnoea alerts
Sleep apnoea alerts	No	No
High blood pressure alerts
High blood pressure alerts	No	No
Body composition
Body composition	No	No
Fall detection
Fall detection	No	No
Crash detection
Crash detection	No	No
GPS
GPS	Dual-band (L1 and L5)	Dual-band (L1 and L5)
Water resistance
Water resistance	50 m	100 m (better)
Sensors
Sensors	GPS, GLONASS and Galileo; 47 mm additionally has multi-band positioning and SatIQ. The exact German datasheet distinguishes 42 mm multi-GNSS from 47 mm multifrequency; current UK/US tables likewise list multi-band and SatIQ only on 47 mm. Both have Garmin Elevate wrist heart rate, Pulse Ox, barometric altimeter, compass, gyroscope, accelerometer and ambient-light sensor. Maker does not number the optical sensor generation.	GPS, GLONASS, Galileo, QZSS and BeiDou with SatIQ multi-band positioning; Garmin Elevate wrist heart rate, Pulse Ox, barometric altimeter, compass, gyroscope, accelerometer, thermometer, ambient light and depth sensors.
Health features
Health features	Continuous heart rate, resting rate and high/low alerts, respiration, Body Battery, stress, advanced sleep, sleep coach, nap detection, HRV status, Health Snapshot, fitness age and jet-lag adviser. Pulse Ox spot checks and optional sleep monitoring. Hydration and menstrual-cycle/pregnancy tracking use Garmin Connect and an optional Connect IQ widget; these are wellness features, not medical diagnosis.	Pulse Ox, skin temperature, sleep and HRV tracking; ECG app where regionally available, subject to compatible phone app and watch software.
Fitness features
Fitness features	Over 43,000 preloaded golf courses, full CourseView vector maps, pan/zoom and touch targeting, green view with manual pin position, hazards, layups, front/middle/back distances and PinPointer. Enhanced PlaysLike distances account for slope, weather and air pressure; wind information requires a phone connected to Garmin Golf. Virtual Caddie offers club recommendations and shot-dispersion charts after five rounds with uploaded scorecards and either optional CT10 sensors or Club Prompt enabled; sensors are not mandatory. AutoShot detects fairway shots; optional CT10 sensors add putt/chip detection. Optional CT1 tags and Z30 laser range finder are supported. Scorecard, statistics, handicap scoring, swing tempo and tournament mode. Green contours need paid Garmin Golf membership; base maps and touch targeting do not. Running, cycling, gym, hiking, racket sports and pool-swimming profiles; VO2 max, recovery time, training load/effect, Garmin Coach and animated workouts. Current tables document pool swimming, not an established open-water swimming profile.	Sport-specific strength workouts, training readiness, endurance and hill scores, PacePro, ClimbPro, TopoActive maps, scuba and apnea dive activities; built-in LED flashlight.
Safety features
Safety features	Incident detection during supported activities and assistance require a paired compatible phone and available network; not standalone emergency communication.	Incident detection and assistance require a paired smartphone.
Battery and connections
Battery life (maker's claim)
Battery life (maker's claim)	Up to 16 days	Up to 16 days
In low-power mode
In low-power mode	–	Up to 23 days
Mobile data option
Mobile data option	No	No
Works with
Works with	iPhone and Android	iPhone and Android
Storage
Storage	16 GB	32 GB (better)
Battery life detail
Battery life detail	42 mm up to 10 days in smartwatch mode and 15 hours using GPS; 47 mm up to 16 days and 20 hours. Current maker web conditions use gesture wake in smartwatch mode and always-on while golfing; April 2026 owner guide labels the same 15/20-hour figures all-satellite-systems mode. Headline duration is the longest standard configuration, 47 mm. Actual battery life depends on enabled sensors, notifications and connected devices.	Up to 16 days in smartwatch mode, seven days with always-on display, 47 hours in GPS-only mode or 35 hours with all-systems multi-band GNSS.
Charging
Charging	Built-in rechargeable lithium-ion battery; Garmin proprietary charging/data connector and supplied USB cable.	Rechargeable lithium-ion battery with Garmin proprietary plug charger.
Connectivity
Connectivity	Bluetooth, ANT+ and Wi-Fi; Garmin Golf, Garmin Connect, Garmin Express and Connect IQ. Garmin Pay with supported banks; downloaded personal music and supported Spotify, Amazon Music and Deezer services, with subscriptions where required and Bluetooth headphones. Phone notifications, Android-only text replies and notification images, calendar, weather and morning report. No cellular version. Current UK/US tables state 16 GB memory/history for both sizes; a later Swiss S50 comparison leaflet lists S70 at 32 GB without a separate hardware identity, so that conflicting sibling comparison is not used to create a version.	Bluetooth, ANT+ and Wi-Fi; Garmin Pay, Connect IQ and on-watch music. Speaker and microphone support calls and voice messaging through a paired phone; some offline voice commands work without one.
Design
Weight (lightest version)
Weight (lightest version)	44 g (better)	73 g
Software
Software	Garmin	Garmin
Case materials
Case materials	Ceramic bezel, Gorilla Glass 3 lens and silicone band. UK range has White/Peach and Powder Grey/Amp Yellow 42 mm finishes, and Black/Red 47 mm. US regional SKU codes differ, with the same three finishes.	Titanium bezel, fibre-reinforced polymer case with metal rear cover, sapphire crystal and silicone band; 10 ATM water rating and 40 m dive-rated case.
Size
Size	42 mm is 42 x 42 x 12.6 mm and 44 g with silicone band, fitting 115–185 mm wrists with a 20 mm QuickFit attachment. 47 mm is 47 x 47 x 13.4 mm and 56 g, fitting 130–205 mm wrists with 22 mm QuickFit. Headline weight is the lighter 42 mm version. Launch German datasheet rounds thickness to 13/14 mm; exact current UK figures are retained.	47 x 47 x 13.8 mm; 73 g with silicone band, 52 g case only.
Bands
Bands	–	QuickFit 22 mm band; silicone band fits wrists 125–208 mm.
Colours
Colours	–	Titanium with spark orange and graphite silicone band.
Reference and release detail
Reference and release detail	Garmin's US announcement on 23 May 2023 states available now; German launch likewise says immediately available. This establishes the first documented on-sale day; an exact UK first shipping day is not independently established. No explicit maker predecessor relationship has been found in the read sources.	–