Compare FLIR iXX Thermal Cameras

The FLIR i34, i35, i64 and i65 share the same app-enabled iXX platform, 5-inch touchscreen, fixed-focus operation, FLIR MSX® image enhancement and connected inspection workflow. The principal differences are infrared resolution, LTE connectivity and temperature range: choose the i34 for dependable everyday electrical, mechanical, HVAC and building inspections, the i35 when you want the same core capability with built-in LTE for uploading away from Wi-Fi, the i64 for higher-detail 480 × 640 thermal imaging and a 550°C upper range, or the i65 when you want the i64’s higher resolution with built-in LTE for more connected multi-site inspection work.

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  • FLIR i34 App-Enabled Thermal Imaging Camera

    Flir i34

    240 × 320 native IR resolution

    1 lens option: 38°

    £4,785.00 incl. VAT £3,987.50 excl. VAT
  • FLIR i35 App-Enabled Thermal Imaging Camera with LTE

    Flir i35

    240 × 320 native IR resolution

    1 lens option: 38°

    £4,785.00 incl. VAT £3,987.50 excl. VAT
  • FLIR i64 App-Enabled Thermal Imaging Camera

    Flir i64

    480 × 640 native IR resolution

    1 lens option: 38°

    £7,685.00 incl. VAT £6,404.17 excl. VAT
  • FLIR i65 App-Enabled Thermal Imaging Camera with LTE

    Flir i65

    480 × 640 native IR resolution

    1 lens option: 38°

    £7,685.00 incl. VAT £6,404.17 excl. VAT

FLIR i34 vs i35 vs i64 vs i65: which should you choose?

The FLIR i34, i35, i64 and i65 share an app-enabled platform for guided inspections, image capture and connected reporting. All four have <40 mK thermal sensitivity, a fixed-focus thermal camera and a wide 38° × 49° field of view.

The main differences are native resolution, LTE and upper temperature range. Choose the i34 for routine inspections without LTE, the i35 for the same resolution with built-in LTE, the i64 for 640 × 480 detail without LTE, or the i65 for higher resolution and LTE.

Comparison of FLIR i34, i35, i64 and i65 thermal cameras
FLIR i34 FLIR i35 FLIR i64 FLIR i65
Native infrared resolution 320 × 240 pixels
76,800 thermal pixels
320 × 240 pixels
76,800 thermal pixels
640 × 480 pixels
307,200 thermal pixels
640 × 480 pixels
307,200 thermal pixels
Thermal sensitivity <40 mK at 30°C <40 mK at 30°C <40 mK at 30°C <40 mK at 30°C
Temperature measurement range −20°C to 200°C
10°C to 450°C
−20°C to 200°C
10°C to 450°C
−20°C to 200°C
10°C to 550°C
−20°C to 200°C
10°C to 550°C
Thermal field of view 38° × 49° 38° × 49° 38° × 49° 38° × 49°
Spatial resolution (IFOV) 2.9 mrad 2.9 mrad 1.4 mrad 1.4 mrad
Thermal focus Fixed focus Fixed focus Fixed focus Fixed focus
Minimum focus distance 0.5 m 0.5 m 0.5 m 0.5 m
Built-in LTE No Yes No Yes
Visible-light camera 8 MP, autofocus 8 MP, autofocus 8 MP, autofocus 8 MP, autofocus
Measurement accuracy ±2°C or ±2% ±2°C or ±2% ±2°C or ±2% ±2°C or ±2%
Battery operation Approx. 4 hours, typical use Approx. 4 hours, typical use Approx. 4 hours, typical use Approx. 4 hours, typical use
Best suited to Routine app-guided inspections where 320 × 240 detail and Wi-Fi connectivity are sufficient Routine app-guided inspections where 320 × 240 detail is sufficient and LTE is useful Higher-detail inspections where LTE is not required Higher-detail inspections with direct LTE connectivity from the field

See FLIR iXX cameras in detail

Watch official video from FLIR about the iXX series of thermal cameras, from camera operation and measurement setup to building reports and using METERLiNK.

Choose the FLIR i34 for routine connected inspections

The FLIR i34 gives you 320 × 240 thermal resolution and the iXX app platform for everyday equipment, electrical and building checks. It’s the entry resolution in the range and is suited to teams that can upload over Wi-Fi and don’t need LTE in the camera.

Choose the FLIR i34 for:

  • Routine checks of panels, motors, pumps and building-services equipment
  • Teams introducing app-guided thermal inspections
  • Work where 320 × 240 resolution is sufficient for the target size and distance
  • Sites with Wi-Fi access or a separate process for transferring inspection data
  • A simpler route into the iXX app ecosystem without built-in LTE

Choose the FLIR i35 for LTE connectivity in the field

The FLIR i35 has the same 320 × 240 resolution and measurement range as the i34, with built-in LTE for uploading and sharing data away from Wi-Fi. Choose it when connectivity on site is the deciding factor, rather than higher thermal resolution.

Choose the FLIR i35 for:

  • Field inspections where Wi-Fi is unavailable or unreliable
  • Teams that need to upload findings directly from site
  • Routine electrical, mechanical and facilities inspections
  • Businesses that want connected reporting without stepping up to 640 × 480 resolution

Choose the FLIR i64 for greater thermal detail

The FLIR i64 steps up to 640 × 480 native infrared resolution, recording four times as many thermal pixels as the i34 and i35. Its finer 1.4 mrad spatial resolution helps distinguish smaller features within the same field of view. It does not include built-in LTE.

Choose the FLIR i64 for:

  • Smaller components or busier scenes that benefit from greater image detail
  • Electrical and mechanical inspections where clearer thermal evidence matters
  • Reports that need closer review or more cropping flexibility
  • Teams that can transfer data through Wi-Fi
  • A higher-resolution iXX camera without built-in LTE

Choose the FLIR i65 for higher resolution and LTE

The FLIR i65 combines 640 × 480 resolution with built-in LTE. It is the strongest fit in the range when teams need both greater target detail and a direct connection from the field.

Choose the FLIR i65 for:

  • Smaller or more complex targets where 320 × 240 is limiting
  • Teams working across multiple sites without dependable Wi-Fi
  • Connected electrical, mechanical and building inspection workflows
  • Organisations that need to share findings from site as inspections happen
  • A single iXX camera for higher-detail capture and LTE-enabled reporting
What do the resolution differences mean in practice?

All four iXX cameras use the same 38° × 49° thermal field of view, so from the same position they capture approximately the same area. Resolution determines how many thermal pixels describe that scene:

  • i34 and i35: 320 × 240 — 76,800 thermal pixels
  • i64 and i65: 640 × 480 — 307,200 thermal pixels

The i64 and i65 record four times as many thermal pixels. This can make smaller details easier to distinguish, but the right choice still depends on target size and working distance.

When is built-in LTE worth choosing?

The i35 and i65 include LTE; the i34 and i64 do not. LTE is useful when the camera needs to send images or inspection data from sites without Wi-Fi. If your workflow already transfers data over Wi-Fi, choose between models based on resolution and temperature range instead.

Capabilities shared by the iXX range
  • <40 mK thermal sensitivity at 30°C
  • 38° × 49° thermal field of view and 0.5 m minimum focus distance
  • Fixed-focus thermal imaging
  • 8 MP autofocus visible-light camera
  • 5-inch 720 × 1280 colour touchscreen
  • MSX, thermal, picture-in-picture and digital camera image modes
  • ±2°C or ±2% measurement accuracy, under specified conditions
  • App-enabled FLIR ACE platform, with FLIR and compatible third-party apps
  • FLIR Assetlink and Ignite connectivity
  • 4 hours typical battery operation
  • IP54 protection and 2 m drop test
  • i35 and i65 models have built-in LTE; i34 and i64 rely on Wi-Fi or another transfer method

FLIR iXX FAQs

Clear answers to the most common questions about choosing between the FLIR i34, i35, i64 and i65.

What is the difference between the FLIR i34, i35, i64 and i65?

The i34 and i35 have 320 × 240 resolution; the i64 and i65 have 640 × 480. The i35 and i65 add built-in LTE. The higher-resolution i64 and i65 also measure up to 550°C, compared with 450°C for the i34 and i35.

Which FLIR iXX models have LTE?

The i35 and i65 have built-in LTE. The i34 and i64 do not.

Are the FLIR iXX cameras fixed focus?

Yes. The thermal camera uses fixed focus and has a 0.5 m minimum focus distance. The visible-light camera is 8 MP with autofocus.

Do the iXX models have interchangeable lenses?

No. The iXX models have a fixed thermal lens with a 38° × 49° field of view.

What temperature range does each iXX model measure?

The i34 and i35 cover −20°C to 200°C and 10°C to 450°C. The i64 and i65 cover −20°C to 200°C and 10°C to 550°C.

Can iXX cameras upload inspection data to the cloud?

Yes. iXX supports FLIR connectivity, including Assetlink and Ignite. The i35 and i65 can also use built-in LTE; the i34 and i64 need Wi-Fi or another available connection.

Is 320 × 240 enough for professional inspections?

It can be, particularly for routine checks of larger targets at close to moderate distances. For smaller components, dense scenes or more detailed reporting, the 640 × 480 i64 or i65 gives you more thermal pixels to work with.

Do I need LTE if my sites have Wi-Fi?

Not necessarily. If Wi-Fi covers your inspection workflow, the i34 or i64 may be suitable. LTE is most useful when you want to upload or share findings directly from locations without Wi-Fi.

Need help before ordering?

Tell us your application, target size and working distance. We’ll help confirm the most suitable camera and lens configuration.