Garmin Fenix 7 Pro Solar Edition vs Instinct 3 45mm AMOLED
Size, specs & wrist fit compared
Which one fits you
Under 16.5 cm (6.5 in) round, the Fenix 7 Pro Solar Edition's lugs overhang and the Instinct 3 45mm AMOLED's do not; the Instinct 3 45mm AMOLED fills the wrist at 17–19 cm, the Fenix 7 Pro Solar Edition at 17.5–19.5 cm.
What else differs
- Screen: the Fenix 7 Pro Solar Edition has the larger screen, 1.3 in across against 1.2 in on the Instinct 3 45mm AMOLED, and the Fenix 7 Pro Solar Edition uses a memory-in-pixel screen that is easy to read in sunlight and sips battery, the Instinct 3 45mm AMOLED a bright AMOLED screen.
- Battery: about 18 days each in everyday use; 2.4 days for the Fenix 7 Pro Solar Edition against 32 hours for the Instinct 3 45mm AMOLED with GPS on.
The Fenix 7 Pro Solar Edition is 2mm wider, 0.4mm thinner and 26g heavier than the Instinct 3 45mm AMOLED.
Fenix 7 Pro Solar Edition
Instinct 3 45mm AMOLED
Case width
47mm
45mm−2mm
Thickness
14.5mm
14.9mm+0.4mm
Weight
79g
53g−26g
Fenix 7 Pro Solar Edition or Instinct 3 45mm AMOLED by wrist size
| Wrist round (mm left each side) | Fenix 7 Pro Solar Edition≈54mm lug to lug, est. | Instinct 3 45mm AMOLED≈51.5mm lug to lug, est. |
|---|---|---|
| 14 cm / 5.5 in | Overhangs (4.4mm over) | Overhangs (3.2mm over) |
| 15 cm / 5.9 in | Overhangs (2.8mm over) | Overhangs (1.6mm over) |
| 16 cm / 6.3 in | Overhangs (1.2mm over) | Bold (0.1mm) |
| 17 cm / 6.7 in | Bold (0.4mm) | Sweet spot (1.7mm) |
| 18 cm / 7.1 in | Sweet spot (2mm) | Sweet spot (3.3mm) |
| 19 cm / 7.5 in | Sweet spot (3.6mm) | Balanced (4.9mm) |
| 20 cm / 7.9 in | Balanced (5.3mm) | Balanced (6.5mm) |
Switch or add watches
Garmin
Fenix 7 Pro Solar Edition
Garmin
Instinct 3 45mm AMOLED
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Battery life compared
Furthest apart in Expedition mode, where the Fenix 7 Pro Solar Edition lasts 2.5× as long as the Instinct 3 45mm AMOLED (40 days against 16 days).
Fenix 7 Pro Solar EditionInstinct 3 45mm AMOLED
Battery saver
57 days +173 days24 daysExpedition
40 days +74 days16 daysSmartwatch
18 days +22 days18 daysMax battery GPS
136 hours +289 hours68 hoursGPS only
57 hours +73 hours32 hoursAll systems
40 hours +48 hours25 hoursAll systems + multi-band
23 hours +26 hours23 hoursAll systems with music
10 hours—
Amber figures are the solar-assisted runtime the manufacturer publishes for that mode.
More comparisons
Garmin Fenix 7 Pro Solar Edition vs Garmin Forerunner 570 42mmGarmin Fenix 7 Pro Solar Edition vs Garmin Venu 4 45mmGarmin Fenix 7 Pro Solar Edition vs Garmin Forerunner 970Garmin Instinct 3 45mm AMOLED vs Garmin Vivoactive 6Garmin Instinct 3 45mm AMOLED vs Garmin Venu 4 45mmGarmin Instinct 3 45mm AMOLED vs Garmin Instinct E 45mm
2D Dimension Schematics
- Garmin Fenix 7 Pro Solar Edition 47mm × ≈54mm (est.) · 14.5mm thick
- Garmin Instinct 3 45mm AMOLED 45mm × ≈51.5mm (est.) · 14.9mm thick
3D preview
Fenix 7 Pro Solar Edition vs Instinct 3 45mm AMOLED on a wrist
Specifications
The short version
7 key specs| Spec | GarminFenix 7 Pro Solar Edition | GarminInstinct 3 45mm AMOLED |
|---|---|---|
| Case Width | 47mm | 45mm |
| Thickness | 14.5mm | 14.9mm |
| Weight | 79g | 53g |
| Shape | Circular | Circular |
| Display type | Sunlight-visible, transflective memory-in-pixel (MIP) | AMOLED (always-on) |
| Battery life | Smartwatch: Up to 18 days/22 days with solar* Battery Saver Watch Mode: Up to 57 days/173 days with solar* GPS Only: Up to 57 hours/73 hours with solar** All Satellite Systems: Up to 40 hours/48 hours with solar* All Satellite Systems + Multi-band: Up to 23 hours/26 hours with solar** All Satellite Systems + Music: Up to 10 hours Max Battery GPS: Up to 136 hours/289 hours with solar** Expedition GPS: Up to 40 days/74 days with solar* *Solar charging, assuming all-day wear with 3 hours per day outside in 50,000 lux conditions **Solar charging, assuming use in 50,000 lux conditions | Smartwatch: Up to 18 days (7 days always-on) Battery Saver Watch Mode: Up to 24 days GPS Only: Up to 32 hours All Satellite Systems: Up to 25 hours All Satellite Systems + Multi-Band: Up to 23 hours* Max Battery GPS: Up to 68 hours Expedition GPS: Up to 16 days *Assuming typical use with SatIQ technology |
| Released | 2023 | 2025 |
Where the specifications differ
28 differences| Spec | Garmin Fenix 7 Pro Solar Edition | Garmin Instinct 3 45mm AMOLED |
|---|---|---|
| General | ||
| Battery life | Smartwatch: Up to 18 days/22 days with solar* Battery Saver Watch Mode: Up to 57 days/173 days with solar* GPS Only: Up to 57 hours/73 hours with solar** All Satellite Systems: Up to 40 hours/48 hours with solar* All Satellite Systems + Multi-band: Up to 23 hours/26 hours with solar** All Satellite Systems + Music: Up to 10 hours Max Battery GPS: Up to 136 hours/289 hours with solar** Expedition GPS: Up to 40 days/74 days with solar* *Solar charging, assuming all-day wear with 3 hours per day outside in 50,000 lux conditions **Solar charging, assuming use in 50,000 lux conditions | Smartwatch: Up to 18 days (7 days always-on) Battery Saver Watch Mode: Up to 24 days GPS Only: Up to 32 hours All Satellite Systems: Up to 25 hours All Satellite Systems + Multi-Band: Up to 23 hours* Max Battery GPS: Up to 68 hours Expedition GPS: Up to 16 days *Assuming typical use with SatIQ technology |
| Display Size | 1.3” (33.02 mm) diameter | 1.2" (30 mm) diameter |
| Case material | fiber-reinforced polymer with steel rear cover | fiber-reinforced polymer |
| Lens Material | Power Glass™ | Chemically Strengthened Glass |
| Bezel Material | stainless steel | fiber-reinforced polymer/aluminum |
| Memory/History | 32 GB | 4 GB |
| Display resolution | 260 x 260 pixels | 390 x 390 pixels |
| Product Info | ||
| Main SKU | 010-02777-00 | 010-02936-00 |
| Product ID | 865822 | 1316397 |
| Product Name | fēnix® 7 Pro – Solar Edition | Instinct® 3 – 45 mm, AMOLED |
| Release Date | 6/1/2023 | 1/6/2025 |
| Product Variation | Slate Gray with Black Band | Black with Black Band |
| Cycling Features | ||
| FTP (Functional Threshold Power) | yes (with compatible accessory) | Yes |
| Golfing Features | ||
| Measures shot distance (calculates exact yardage for shots from anywhere on course) | automatic | manual |
| What You'll Love | ||
| Display type | Sunlight-visible, transflective memory-in-pixel (MIP) | AMOLED (always-on) |
| Battery life (smartwatch mode) | Up to 18 days22 days with solar | Up to 18 days (7 days always-on) |
| Activity Profiles | ||
| Gym | Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Jump Roping | Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing |
| Wellness | Walking, Pilates, Yoga, Indoor Walking | Walking, Indoor Walking, Pilates, Yoga |
| Multisport | Swimming/Running, Triathlon | Triathlon |
| On the Water | Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Kiteboarding, Windsurfing, Fishing, Boating, Sailing, Sail Racing, Water Skiing, Wakeboarding, Wakesurfing, Tubing, Snorkeling, Sailing Expedition, Whitewater | Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Kiteboarding, Windsurfing, Fishing, Boating, Water Skiing, Snorkeling, Wakeboarding, Wakesurfing, Tubing, Whitewater |
| Outdoor running | Running, Outdoor Track Running, Trail Running, Ultra Running, Obstacle Racing | Running, Outdoor Track Running, Trail Running, Obstacle Racing |
| Outdoor recreation | Hiking, Indoor Climbing, Bouldering, Climbing, Hunting, Horseback Riding, Golfing, Disc Golf, Archery | Hiking, Rucking, Indoor Climbing, Bouldering, Climbing, Hunting, Horseback Riding, Golfing, Disc Golf, Archery |
| Other activity profiles | Jumpmaster, Tactical, Inline Skating | Tactical, Inline Skating |
| Swimming Features | ||
| Heart rate from external HRM (real-time during rests, interval and session stats during rests, and automatic heart rate download post-swim) | yes (with HRM-Tri, HRM-Swim, HRM-Pro or HRM-Pro Plus) | Yes |
| Outdoor Recreation | ||
| Tides | yes (via Connect IQ™) | Yes |
| Area calculation | yes (via Connect IQ™) | Yes |
| Daily Smart Features | ||
| Connectivity | Bluetooth®, ANT+®, Wi-Fi® | Bluetooth®, ANT+® |
| Health & Wellness Monitoring | ||
| Fitness age | yes (in app) | Yes |
The other 199 specifications both list are identical.
Full Garmin Fenix 7 Pro Solar Edition specifications →Full Garmin Instinct 3 45mm AMOLED specifications →